| 1. | For closer tolerances which of the lowing capacitors is usually preferred ? | |
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Paper capacitor
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Mica capacitor
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Ceramic disc capacitor
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None of the above
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Report Question| 2. | A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ? | |
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Paper capacitor
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Ceramic capacitor
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Electrolytic capacitor
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Any of the above
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| 3. | A gang condenser is a ? | |
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polarised capacitor
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variable capacitor
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ceramic capacitor
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none of the above
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| 4. | Capacitance increases with ? | |
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increase in plate area and decrease in distance between the plates
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increase in plate area and distance between the plates
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decrease in plate area and value of applied voltage
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reduction in plate area and distance between the plates
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| 5. | Which of the following statement is true ? | |
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The current in the discharging capacitor grows linearly
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The current in the discharging capacitor grows exponentially
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The current in the discharging capacitor decays exponentially
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The current in the discharging capacitor decreases constantly
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| 6. | Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the ? | |
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voltage across the plates increases
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voltage across the plates decreases
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charge on the capacitor decreases
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charge on the capacitor increases
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| 7. | A dielectric material must be ? | |
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resistor
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insulator
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good conductor
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semiconductor
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| 8. | For making a capacitor, it is better to select a dielectric having ? | |
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low permittivity
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high permittivity
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permittivity same as that of air
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permittivity slightly more than that of air
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| 9. | Which of the following capacitors will have the least value of breakdown voltage ? | |
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Mica
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Paper
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Ceramic
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Electrolytic
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| 10. | The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as ...... ? | |
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photoelectric effect
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chemical effect
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magnetic effect
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induction
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