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Electrostatic and Capacitance

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

1

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Electrostatic and Capacitance
Which of the following capacitors preferred for high frequency circuits ?

Air capacitor
Mica capacitor
Electrolytic capacitor
None of these

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Electrostatic and Capacitance
The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be

1600 N/C
1200 N/C
800 N/C
2000 N/C

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Electrostatic and Capacitance
Which is the most superior dielectric out of the following ?

Air
Paper
Glass
Bakelite

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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
0.4 s
0.8 s
1.2 s

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Electrostatic and Capacitance
Electric displacement is a______quantity.

Scalar quantity
Vector quantity
None of the listed here
Both scalar & vector

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