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Electrostatic and Capacitance

Electrostatic and Capacitance
Capacitors are mainly used for radio frequency tuning.

Electrolytic
Mica
Paper
Air

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Electrostatic and Capacitance
Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them

all in series
two in series and third in parallel across this combination
two in parallel and third in series with this combination
all in parallel

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Electrostatic and Capacitance
A 12 kHz voltage is applied to a 0.33 µF capacitor, and 200 mA of rms current is measured. What is the value of the voltage?

80 V
0.88 V
800 V
8 V

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Electrostatic and Capacitance
The capacity of capacitor bank used in power factor correction is expressed in terms of

KW
KVAR
KV
KVA

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

None of these
Capacitance
Inductance
Potential gradient

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