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Electrostatic and Capacitance

Electrostatic and Capacitance
Dielectric constant for mica is nearly

200
3 to 8
1 to 2
100

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Electrostatic and Capacitance
A 4.7 MΩ resistor is in series with a 0.015 µF capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge?

35 ms
352 ms
3.5 ms
70.5 ms

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Electrostatic and Capacitance
Permittivity is expressed in

Farad/meter
Weber/sq-m
Weber/meter
Farad/sq-m

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Electrostatic and Capacitance
A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is

50 joules
250 joules
150 joules
200 joules

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Electrostatic and Capacitance
Electric displacement is a______quantity.

Both scalar & vector
Scalar quantity
None of the listed here
Vector quantity

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Electrostatic and Capacitance
is that property of a capacitor which delays any change of voltage across it.

Capacitance
None of these
Inductance
Potential gradient

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