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Electrostatic and Capacitance

Electrostatic and Capacitance
The units of volume charge density are

Coulomb/meter
Coulomb/meter
Coulomb/meter
Coulomb/meter

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Electrostatic and Capacitance
Acharge which when placed in vacuum from an equal and similar charge repels with a force of 9 x 10 N, is known as

coulomb
milli-coulomb
pico-coulomb
micro-coulomb

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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

250 joules
150 joules
200 joules
50 joules

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Electrostatic and Capacitance
A 220 Ω resistor is in series with a 2.2 µF capacitor. The time constant is

24 µs
480 µs
48 µs
2.42 µs

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Electrostatic and Capacitance
A paper capacitor is usually available in the form of

Rolled Foil
None of the listed here
Disc
Tubes

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Electrostatic and Capacitance
If three 10 uF capacitors are connected in parallel, the net cararitance is

40 uF
30 uF
20 uF
15 uF

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