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Electrostatic and Capacitance

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 ?

300 times
100 times
150 times
50 times

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

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

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Electrostatic and Capacitance
A capacitor of 0.02 µF is larger than

200,000 pF
0.000020 F
All of these
2,000 pF

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Electrostatic and Capacitance
An uncharged capacitor and a 1 kΩ resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is

6 V
3 V
2 V
0 V

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Electrostatic and Capacitance
The sparking between two electrical contacts can be reduced by inserting a

None of these
capacitor in series with each contact
resistance in line
capacitor in parallel with contacts

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

Electrolytic
Paper
Air
Mica

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