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Electrostatic and Capacitance

Electrostatic and Capacitance
Dielectric strength of a medium is usually expressed in

C/mm
KV/mm
N/mm
None of the listed here

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Electrostatic and Capacitance
The electric field at a point situated at a distance d from straight charged conductor is

Inversely proportional to d
Inversely proportional to d
None of the listed here
proportional to d

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Electrostatic and Capacitance
The true power in a capacitor is zero.

1

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Electrostatic and Capacitance
Voltage applied across a ceramic dielectric produces an electrolytic field 100 times greater than air. What will be the value of dielectric constant ?

50 times
300 times
100 times
150 times

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

Paper
Air
Mica
Ceramic

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Electrostatic and Capacitance
Air capacitors are generally available in the range

200 to 300 pF
10 to 400 pF
1 to 20 pF
100 to 500 pF

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