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Electrostatic and Capacitance

Electrostatic and Capacitance
Mica capacitors are characterised by all of the following except

accurate value
low losses
stable operation
low leakage reactance

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Electrostatic and Capacitance
The unit of dielectric strength is given by

m/V2
V2/m
m/V
V/m

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Electrostatic and Capacitance
The presence of an uncharged conductor near a charged one increases the

All of the listed here
Charge of the charged conductor
Capacity of the charged conductor
Potential of the charged conductor

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Electrostatic and Capacitance
A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is

0.6 s
0.8 s
0.4 s
1.2 s

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Electrostatic and Capacitance
The absolute permittivity of free space is given by

8.854 x KT11 F/m
8.854 x 1(T10 F/m)
8.854 x 10?12 F/m
8.854 x 1(T9 F/m)

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Electrostatic and Capacitance
Capacitors are used for audio frequency and radio frequency coupling and tuning

Ceramic
Mica
Air
Paper

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