| 1. | .......... field is associated with the capacitor ? | |
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Electric
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Magnetic
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Both (a) and (b)
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None of the above
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Report Question| 2. | Which medium has the least dielectric strength ? | |
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Paraffin wax
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Glass
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Quartz
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Air
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| 3. | A capacitor consists of two ? | |
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ceramic plates and one mica disc
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insulators separated by a dielectric
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silver coated insulators
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conductors separated by an insulator
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| 4. | When the dielectric is homogeneous, the potential gradient is ? | |
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uniform
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non-uniform
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zero
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any of the above
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| 5. | When a dielectric is placed in an electric field the field strength ? | |
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decreases
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increases
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reduces to zero
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remain unchanged
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| 6. | Which of the following capacitors preferred for high frequency circuits ? | |
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Air capacitor
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Electrolytic capacitor
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Mica capacitor
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none of the above
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| 7. | The unit of capacitance is ? | |
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henry
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ohm
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farad
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farad/m
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| 8. | The unit of capacitance is ? | |
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henry
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ohm
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farad
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farad/m
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| 9. | Dielectric constant for mica is nearly ? | |
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200
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100
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3 to 8
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1 to 2
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| 10. | When a capacitor undergoes a dielectric breakdown ? | |
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dielectric stores energy rendering plates charge less
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electrons get scattered
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electrons cease to move from one plate to another
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permanent conduction path is established between plates
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