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Electrostatic and Capacitance

Electrostatic and Capacitance
A dielectric material must be

Semi conductor
Insulator
Good conductor
Resistor

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Electrostatic and Capacitance
Out of the following capacitors of identical rating which one will have the smallest dimensions ?

Aluminium foil capacitor
Ceramic capacitor
Mica capacitor
Paper capacitor

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

20 uF
15 uF
40 uF
30 uF

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Electrostatic and Capacitance
Five time constants are required for a capacitor to charge fully or discharge fully.

1

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Electrostatic and Capacitance
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.024 F
0.12 F
0.8 F
0.6 F

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Electrostatic and Capacitance
The value of dielectric constant for vacuum is taken as

0
2
1
3

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