{"id":17635,"date":"2025-11-08T09:10:10","date_gmt":"2025-11-08T09:10:10","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=17635"},"modified":"2025-11-10T03:50:46","modified_gmt":"2025-11-10T03:50:46","slug":"current-electricity-top-100-mcqs-with-answer-and-explanation-2","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/11\/08\/current-electricity-top-100-mcqs-with-answer-and-explanation-2\/","title":{"rendered":"Current electricity Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">1. The branch of physics which deals with charges in motion is called<\/mark><\/strong><br>A) Current electricity<br>B) Static electricity<br>C) Magnetism<br>D) Optics<br><strong>Answer:<\/strong> A) Current electricity<br><strong>Explanation:<\/strong> Current electricity studies the flow of moving charges through conductors.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">2. Electric current is the flow of<\/mark><\/strong><br>A) Electrons<br>B) Protons<br>C) Neutrons<br>D) Atoms<br><strong>Answer:<\/strong> A) Electrons<br><strong>Explanation:<\/strong> In metals, electrons move freely and constitute current.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">3. The SI unit of electric current is<\/mark><\/strong><br>A) Ampere<br>B) Volt<br>C) Ohm<br>D) Watt<br><strong>Answer:<\/strong> A) Ampere<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">4. Electric current is measured using a<\/mark><\/strong><br>A) Ammeter<br>B) Voltmeter<br>C) Ohmmeter<br>D) Galvanometer<br><strong>Answer:<\/strong> A) Ammeter<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">5. An ammeter is always connected in<\/mark><\/strong><br>A) Series<br>B) Parallel<br>C) Across the circuit<br>D) Randomly<br><strong>Answer:<\/strong> A) Series<br><strong>Explanation:<\/strong> The current must pass through the ammeter to measure it.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">6. The instrument used to measure potential difference is<\/mark><\/strong><br>A) Voltmeter<br>B) Ammeter<br>C) Galvanometer<br>D) Wattmeter<br><strong>Answer:<\/strong> A) Voltmeter<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">7. A voltmeter is always connected in<\/mark><\/strong><br>A) Parallel<br>B) Series<br>C) Across current<br>D) Randomly<br><strong>Answer:<\/strong> A) Parallel<br><strong>Explanation:<\/strong> It measures the voltage between two points.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">8. The unit of potential difference is<\/mark><\/strong><br>A) Volt<br>B) Ampere<br>C) Ohm<br>D) Coulomb<br><strong>Answer:<\/strong> A) Volt<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">9. A closed conducting path for electric current is called<\/mark><\/strong><br>A) Electric circuit<br>B) Magnetic loop<br>C) Electric pole<br>D) Coil<br><strong>Answer:<\/strong> A) Electric circuit<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>10. The material that allows electric current to pass through easily is called<\/strong><br><\/mark>A) Conductor<br>B) Insulator<br>C) Semiconductor<br>D) Plastic<br><strong>Answer:<\/strong> A) Conductor<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">11. The material that does not allow current to pass through is called<\/mark><\/strong><br>A) Insulator<br>B) Conductor<br>C) Semiconductor<br>D) Alloy<br><strong>Answer:<\/strong> A) Insulator<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">12. Examples of good conductors are<\/mark><\/strong><br>A) Copper and silver<br>B) Rubber and glass<br>C) Wood and paper<br>D) Plastic and cloth<br><strong>Answer:<\/strong> A) Copper and silver<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">13. Examples of insulators are<\/mark><\/strong><br>A) Plastic and rubber<br>B) Silver and iron<br>C) Copper and aluminium<br>D) Steel and lead<br><strong>Answer:<\/strong> A) Plastic and rubber<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">14. The rate of flow of electric charge is called<\/mark><\/strong><br>A) Electric current<br>B) Resistance<br>C) Voltage<br>D) Power<br><strong>Answer:<\/strong> A) Electric current<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">15. The opposition offered to the flow of current is called<\/mark><\/strong><br>A) Resistance<br>B) Conductance<br>C) Power<br>D) Capacitance<br><strong>Answer:<\/strong> A) Resistance<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">16. The unit of resistance is<\/mark><\/strong><br>A) Ohm<br>B) Ampere<br>C) Volt<br>D) Watt<br><strong>Answer:<\/strong> A) Ohm<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">17. The device used to control current in a circuit is called<\/mark><\/strong><br>A) Rheostat<br>B) Battery<br>C) Transformer<br>D) Generator<br><strong>Answer:<\/strong> A) Rheostat<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">18. The material whose resistance is very low is<\/mark><\/strong><br>A) Conductor<br>B) Insulator<br>C) Plastic<br>D) Rubber<br><strong>Answer:<\/strong> A) Conductor<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">19. The material whose resistance is very high is<\/mark><\/strong><br>A) Insulator<br>B) Conductor<br>C) Metal<br>D) Water<br><strong>Answer:<\/strong> A) Insulator<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">20. The reciprocal of resistance is called<\/mark><\/strong><br>A) Conductance<br>B) Capacitance<br>C) Inductance<br>D) Reactance<br><strong>Answer:<\/strong> A) Conductance<br><strong>Explanation:<\/strong> Conductance measures how easily current can flow.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">21. The unit of conductance is<\/mark><\/strong><br>A) Siemens<br>B) Ohm<br>C) Volt<br>D) Ampere<br><strong>Answer:<\/strong> A) Siemens<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">22. A battery is a combination of<\/mark><\/strong><br>A) Cells<br>B) Resistors<br>C) Coils<br>D) Capacitors<br><strong>Answer:<\/strong> A) Cells<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">23. The chemical source of electricity is<\/mark><\/strong><br>A) Battery<br>B) Generator<br>C) Transformer<br>D) Motor<br><strong>Answer:<\/strong> A) Battery<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">24. A dry cell converts<\/mark><\/strong><br>A) Chemical energy into electrical energy<br>B) Mechanical energy into heat<br>C) Light into sound<br>D) Heat into magnetic energy<br><strong>Answer:<\/strong> A) Chemical energy into electrical energy<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">25. The positive terminal of a dry cell is called<\/mark><\/strong><br>A) Cathode<br>B) Anode<br>C) Negative terminal<br>D) Neutral<br><strong>Answer:<\/strong> A) Cathode<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">26. The negative terminal of a dry cell is called<\/mark><\/strong><br>A) Anode<br>B) Cathode<br>C) Earth<br>D) Neutral<br><strong>Answer:<\/strong> A) Anode<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">27. The direction of conventional current is<\/mark><\/strong><br>A) From positive to negative<br>B) From negative to positive<br>C) In both directions<br>D) Opposite of flow of charge<br><strong>Answer:<\/strong> A) From positive to negative<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">28. The direction of electron flow is<\/mark><\/strong><br>A) From negative to positive<br>B) From positive to negative<br>C) Random<br>D) Perpendicular to current<br><strong>Answer:<\/strong> A) From negative to positive<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">29. In metals, electric current is due to<\/mark><\/strong><br>A) Movement of free electrons<br>B) Movement of protons<br>C) Movement of ions<br>D) Movement of holes<br><strong>Answer:<\/strong> A) Movement of free electrons<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">30. The instrument used to detect weak current is<\/mark><\/strong><br>A) Galvanometer<br>B) Ammeter<br>C) Voltmeter<br>D) Wattmeter<br><strong>Answer:<\/strong> A) Galvanometer<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">31. A conductor has more resistance if it is<\/mark><\/strong><br>A) Long and thin<br>B) Short and thick<br>C) Short and thin<br>D) Long and thick<br><strong>Answer:<\/strong> A) Long and thin<br><strong>Explanation:<\/strong> Resistance increases with length and decreases with thickness.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">32. Resistance of a wire depends on<\/mark><\/strong><br>A) Length, area, and material<br>B) Color<br>C) Temperature only<br>D) Type of battery<br><strong>Answer:<\/strong> A) Length, area, and material<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">33. The resistance of a metal wire increases with<\/mark><\/strong><br>A) Increase in temperature<br>B) Decrease in temperature<br>C) Constant temperature<br>D) Cooling<br><strong>Answer:<\/strong> A) Increase in temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">34. The resistance of an insulator decreases with<\/mark><\/strong><br>A) Increase in temperature<br>B) Decrease in temperature<br>C) Pressure<br>D) Light<br><strong>Answer:<\/strong> A) Increase in temperature<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">35. Ohm\u2019s Law states that<\/mark><\/strong><br>A) Current is directly proportional to voltage<br>B) Voltage is constant<br>C) Resistance is zero<br>D) Power is inversely proportional<br><strong>Answer:<\/strong> A) Current is directly proportional to voltage<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">36. A resistor is used to<\/mark><\/strong><br>A) Limit the flow of current<br>B) Store energy<br>C) Amplify current<br>D) Generate electricity<br><strong>Answer:<\/strong> A) Limit the flow of current<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>37. The device used to protect a circuit from excessive current is called<\/strong><br><\/mark>A) Fuse<br>B) Coil<br>C) Rheostat<br>D) Capacitor<br><strong>Answer:<\/strong> A) Fuse<br><strong>Explanation:<\/strong> A fuse melts and breaks the circuit if current exceeds safe limits.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">38. The wire used in fuses has<\/mark><\/strong><br>A) Low melting point<br>B) High melting point<br>C) No resistance<br>D) Magnetic property<br><strong>Answer:<\/strong> A) Low melting point<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">39. The material commonly used for making fuse wire is<\/mark><\/strong><br>A) Tin and lead alloy<br>B) Copper<br>C) Aluminium<br>D) Iron<br><strong>Answer:<\/strong> A) Tin and lead alloy<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">40. A short circuit occurs when<\/mark><\/strong><br>A) Current flows through low resistance path accidentally<br>B) Battery is disconnected<br>C) Fuse is removed<br>D) Switch is open<br><strong>Answer:<\/strong> A) Current flows through low resistance path accidentally<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">41. The process of connecting an electric circuit to the earth is called<\/mark><\/strong><br>A) Earthing<br>B) Insulating<br>C) Charging<br>D) Magnetizing<br><strong>Answer:<\/strong> A) Earthing<br><strong>Explanation:<\/strong> Earthing provides a safe path for excess current to flow into the ground.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">42. Earthing is important because it<\/mark><\/strong><br>A) Prevents electric shock<br>B) Increases current<br>C) Reduces voltage<br>D) Stops electricity<br><strong>Answer:<\/strong> A) Prevents electric shock<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">43. The heating effect of electric current is used in<\/mark><\/strong><br>A) Electric iron<br>B) Refrigerator<br>C) Fan motor<br>D) Radio<br><strong>Answer:<\/strong> A) Electric iron<br><strong>Explanation:<\/strong> Electrical energy is converted into heat energy.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">44. The chemical effect of electric current is used in<\/mark><\/strong><br>A) Electroplating and electrolysis<br>B) Fan rotation<br>C) Power generation<br>D) Lighting<br><strong>Answer:<\/strong> A) Electroplating and electrolysis<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">45. The magnetic effect of electric current is used in<\/mark><\/strong><br>A) Electric bell and motors<br>B) Electric iron<br>C) Electric heater<br>D) Bulbs<br><strong>Answer:<\/strong> A) Electric bell and motors<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">46. The heating effect of current depends on<\/mark><\/strong><br>A) Magnitude of current and time<br>B) Color of wire<br>C) Shape of wire<br>D) Air pressure<br><strong>Answer:<\/strong> A) Magnitude of current and time<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">47. The electric bulb glows due to<\/mark><\/strong><br>A) Heating effect of current<br>B) Magnetic effect<br>C) Chemical effect<br>D) Static charge<br><strong>Answer:<\/strong> A) Heating effect of current<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">48. The thin wire in a bulb which glows is called<\/mark><\/strong><br>A) Filament<br>B) Coil<br>C) Fuse<br>D) Circuit<br><strong>Answer:<\/strong> A) Filament<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">49. The filament of an electric bulb is made of<\/mark><\/strong><br>A) Tungsten<br>B) Copper<br>C) Aluminium<br>D) Lead<br><strong>Answer:<\/strong> A) Tungsten<br><strong>Explanation:<\/strong> Tungsten has a high melting point and does not melt easily.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">50. The process of coating a metal object with another metal using electricity is<\/mark><\/strong><br>A) Electroplating<br>B) Magnetizing<br>C) Insulating<br>D) Fusing<br><strong>Answer:<\/strong> A) Electroplating<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>51. The device which converts electrical energy into mechanical energy is<\/strong><br><\/mark>A) Electric motor<br>B) Generator<br>C) Transformer<br>D) Battery<br><strong>Answer:<\/strong> A) Electric motor<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>52. The device which converts mechanical energy into electrical energy is<\/strong><br><\/mark>A) Generator<br>B) Motor<br>C) Transformer<br>D) Cell<br><strong>Answer:<\/strong> A) Generator<\/p>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>53. The device which converts electrical energy into light energy is<\/strong><br><\/mark>A) Bulb<br>B) Fan<br>C) Motor<br>D) Switch<br><strong>Answer:<\/strong> A) Bulb<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">54. The rate at which electrical energy is consumed is called<\/mark><\/strong><br>A) Electric power<br>B) Electric energy<br>C) Current<br>D) Resistance<br><strong>Answer:<\/strong> A) Electric power<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">55. The unit of electric power is<\/mark><\/strong><br>A) Watt<br>B) Volt<br>C) Ohm<br>D) Ampere<br><strong>Answer:<\/strong> A) Watt<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">56. The commercial unit of electrical energy is<\/mark><\/strong><br>A) Kilowatt-hour (kWh)<br>B) Joule<br>C) Ampere-hour<br>D) Volt-second<br><strong>Answer:<\/strong> A) Kilowatt-hour (kWh)<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">57. One kilowatt-hour of energy is equal to<\/mark><\/strong><br>A) Energy consumed by 1000-watt appliance in one hour<br>B) Energy used in one second<br>C) Power of 10-watt for one minute<br>D) None<br><strong>Answer:<\/strong> A) Energy consumed by 1000-watt appliance in one hour<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">58. The electric meter in our house measures<\/mark><\/strong><br>A) Electrical energy used<br>B) Electric current<br>C) Voltage<br>D) Power<br><strong>Answer:<\/strong> A) Electrical energy used<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">59. Electric fuse is used for<\/mark><\/strong><br>A) Safety of circuit from excess current<br>B) Increasing voltage<br>C) Storing energy<br>D) Measuring current<br><strong>Answer:<\/strong> A) Safety of circuit from excess current<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">60. The fuse wire melts when<\/mark><\/strong><br>A) Current exceeds the safe limit<br>B) Current is very low<br>C) Voltage is zero<br>D) Wire is thick<br><strong>Answer:<\/strong> A) Current exceeds the safe limit<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">61. Fuse wire has<\/mark><\/strong><br>A) Low melting point<br>B) High melting point<br>C) No resistance<br>D) Magnetic property<br><strong>Answer:<\/strong> A) Low melting point<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">62. The device that automatically switches off when current exceeds the limit is<\/mark><\/strong><br>A) Circuit breaker (MCB)<br>B) Capacitor<br>C) Battery<br>D) Transformer<br><strong>Answer:<\/strong> A) Circuit breaker (MCB)<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">63. MCB stands for<\/mark><\/strong><br>A) Miniature Circuit Breaker<br>B) Maximum Current Breaker<br>C) Mechanical Control Breaker<br>D) Magnetic Circuit Block<br><strong>Answer:<\/strong> A) Miniature Circuit Breaker<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">64. In household circuits, the fuse is connected in<\/mark><\/strong><br>A) Live wire<br>B) Neutral wire<br>C) Both wires<br>D) Earth wire<br><strong>Answer:<\/strong> A) Live wire<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">65. The color of live wire in household wiring is<\/mark><\/strong><br>A) Red or brown<br>B) Blue or black<br>C) Green<br>D) Yellow<br><strong>Answer:<\/strong> A) Red or brown<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">66. The color of neutral wire is<\/mark><\/strong><br>A) Black or blue<br>B) Red<br>C) Green<br>D) Yellow<br><strong>Answer:<\/strong> A) Black or blue<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">67. The color of earth wire is<\/mark><\/strong><br>A) Green<br>B) Red<br>C) Blue<br>D) White<br><strong>Answer:<\/strong> A) Green<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">68. The flow of current through a human body can cause<\/mark><\/strong><br>A) Electric shock<br>B) Cooling<br>C) Lighting<br>D) Magnetism<br><strong>Answer:<\/strong> A) Electric shock<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">69. Electric shock can be prevented by<\/mark><\/strong><br>A) Proper earthing<br>B) Overheating wires<br>C) Removing fuse<br>D) Using wet hands<br><strong>Answer:<\/strong> A) Proper earthing<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">70. The heating effect of current is used in<\/mark><\/strong><br>A) Electric heater<br>B) Electric fan<br>C) Electric motor<br>D) Electric generator<br><strong>Answer:<\/strong> A) Electric heater<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">71. The device which converts electrical energy into sound energy is<\/mark><\/strong><br>A) Loudspeaker<br>B) Electric heater<br>C) Bulb<br>D) Transformer<br><strong>Answer:<\/strong> A) Loudspeaker<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">72. The resistance of a good conductor is<\/mark><\/strong><br>A) Very small<br>B) Very large<br>C) Zero<br>D) Infinite<br><strong>Answer:<\/strong> A) Very small<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">73. The resistance of an insulator is<\/mark><\/strong><br>A) Very high<br>B) Very low<br>C) Zero<br>D) Medium<br><strong>Answer:<\/strong> A) Very high<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">74. When resistors are connected in series, the total resistance<\/mark><\/strong><br>A) Increases<br>B) Decreases<br>C) Remains same<br>D) Becomes zero<br><strong>Answer:<\/strong> A) Increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">75. When resistors are connected in parallel, the total resistance<\/mark><\/strong><br>A) Decreases<br>B) Increases<br>C) Becomes zero<br>D) Constant<br><strong>Answer:<\/strong> A) Decreases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">76. In a series circuit, the current is<\/mark><\/strong><br>A) Same through all components<br>B) Different<br>C) Half in each<br>D) Zero<br><strong>Answer:<\/strong> A) Same through all components<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">77. In a parallel circuit, the potential difference is<\/mark><\/strong><br>A) Same across all components<br>B) Different<br>C) Zero<br>D) Variable<br><strong>Answer:<\/strong> A) Same across all components<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">78. A device that maintains a constant potential difference is<\/mark><\/strong><br>A) Battery<br>B) Motor<br>C) Resistor<br>D) Inductor<br><strong>Answer:<\/strong> A) Battery<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">79. The part of the circuit that converts electrical energy to other forms is called<\/mark><\/strong><br>A) Load<br>B) Source<br>C) Switch<br>D) Connector<br><strong>Answer:<\/strong> A) Load<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>80. Electric energy is converted into heat energy in<\/strong><br>A) Electric heater<br>B) Generator<br>C) Fan<br>D) Transformer<br><strong>Answer:<\/strong> A) Electric heater<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">81. Electric energy is converted into light energy in<\/mark><\/strong><br>A) Electric bulb<br>B) Motor<br>C) Iron box<br>D) Switch<br><strong>Answer:<\/strong> A) Electric bulb<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">82. Electric energy is converted into mechanical energy in<\/mark><\/strong><br>A) Motor<br>B) Generator<br>C) Cell<br>D) Lamp<br><strong>Answer:<\/strong> A) Motor<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">83. The electric switch is used to<\/mark><\/strong><br>A) Open or close the circuit<br>B) Increase current<br>C) Store charge<br>D) Convert energy<br><strong>Answer:<\/strong> A) Open or close the circuit<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">84. The flow of electric current in a circuit stops when<\/mark><\/strong><br>A) Circuit is open<br>B) Circuit is closed<br>C) Switch is on<br>D) Battery is connected<br><strong>Answer:<\/strong> A) Circuit is open<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">85. The energy consumption of a household device depends on<\/mark><\/strong><br>A) Power rating and usage time<br>B) Color of wire<br>C) Shape of plug<br>D) Air pressure<br><strong>Answer:<\/strong> A) Power rating and usage time<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">86. Electrical energy can be converted into<\/mark><\/strong><br>A) Heat, light, and motion<br>B) Water<br>C) Magnet<br>D) Sound only<br><strong>Answer:<\/strong> A) Heat, light, and motion<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">87. An electric current produces<\/mark><\/strong><br>A) Magnetic field<br>B) Gravitational force<br>C) Nuclear energy<br>D) Sound wave<br><strong>Answer:<\/strong> A) Magnetic field<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">88. The magnetic field around a current-carrying wire was discovered by<\/mark><\/strong><br>A) Hans Christian Oersted<br>B) Newton<br>C) Faraday<br>D) Edison<br><strong>Answer:<\/strong> A) Hans Christian Oersted<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">89. The strength of the magnetic field around a current-carrying wire increases when<\/mark><\/strong><br>A) Current increases<br>B) Current decreases<br>C) Wire is cold<br>D) Air is dry<br><strong>Answer:<\/strong> A) Current increases<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">90. Electric current in liquids is due to<\/mark><\/strong><br>A) Movement of ions<br>B) Movement of electrons<br>C) Movement of protons<br>D) Convection<br><strong>Answer:<\/strong> A) Movement of ions<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">91. Pure water does not conduct electricity because<\/mark><\/strong><br>A) It has no free ions<br>B) It is magnetic<br>C) It is an acid<br>D) It has high resistance<br><strong>Answer:<\/strong> A) It has no free ions<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">92. The addition of acid or salt to water makes it<\/mark><\/strong><br>A) Conducting<br>B) Non-conducting<br>C) Magnetic<br>D) Neutral<br><strong>Answer:<\/strong> A) Conducting<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">93. The electric current through gases produces<\/mark><\/strong><br>A) Light and heat<br>B) Only heat<br>C) Only current<br>D) Only magnetism<br><strong>Answer:<\/strong> A) Light and heat<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">94. The gases that conduct electricity when ionized are called<\/mark><\/strong><br>A) Plasma<br>B) Vapor<br>C) Steam<br>D) Air<br><strong>Answer:<\/strong> A) Plasma<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">95. The electric discharge through gases is used in<\/mark><\/strong><br>A) Neon signs and fluorescent lamps<br>B) Electric heaters<br>C) Water pumps<br>D) Motors<br><strong>Answer:<\/strong> A) Neon signs and fluorescent lamps<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">96. The electric energy used in our homes comes from<\/mark><\/strong><br>A) Power stations<br>B) Dry cells<br>C) Motors<br>D) Batteries only<br><strong>Answer:<\/strong> A) Power stations<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">97. The electric power supplied to houses is in the form of<\/mark><\/strong><br>A) Alternating current (AC)<br>B) Direct current (DC)<br>C) Static electricity<br>D) Magnetic current<br><strong>Answer:<\/strong> A) Alternating current (AC)<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">98. The electric current from a dry cell is<\/mark><\/strong><br>A) Direct current (DC)<br>B) Alternating current (AC)<br>C) Changing<br>D) Variable   <br><strong>Answer:<\/strong> A) Direct current (DC)<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">99. In India, the frequency of AC supply is<\/mark><\/strong><br>A) 50 Hertz<br>B) 60 Hertz<br>C) 100 Hertz<br>D) 40 Hertz<br><strong>Answer:<\/strong> A) 50 Hertz<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">100. Electrical energy is used in daily life for<\/mark><\/strong><br>A) Lighting, heating, and operating appliances<br>B) Cooling air only<br>C) Producing noise<br>D) Generating gravity<br><strong>Answer:<\/strong> A) Lighting, heating, and operating appliances<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. The branch of physics which deals with charges in motion is calledA) Current electricityB) Static electricityC) MagnetismD) OpticsAnswer: A) Current electricityExplanation: Current electricity studies the flow of moving charges through conductors. 2. Electric current is the flow ofA) ElectronsB) ProtonsC) NeutronsD) AtomsAnswer: A) ElectronsExplanation: In metals, electrons move freely and constitute current. 3. The<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-17635","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-blog"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=17635"}],"version-history":[{"count":5,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17635\/revisions"}],"predecessor-version":[{"id":17679,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/17635\/revisions\/17679"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=17635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=17635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=17635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}