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Electrostatic and Capacitance

Electrostatic and Capacitance
Acharge which when placed in vacuum from an equal and similar charge repels with a force of 9 x 10 N, is known as

micro-coulomb
pico-coulomb
milli-coulomb
coulomb

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Electrostatic and Capacitance
An electrolytic capacitor is generally made to provide

Variable capacitance
Fixed capacitance
Large value of capacitance
Low capacitance

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Electrostatic and Capacitance
What will happen to an insulating medium if voltage more than the breakdown voltage is applied on it ?

Its molecular structure will get changed
It will get punctured or cracked
It will become magnetic
It will melt

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Electrostatic and Capacitance
The unit of dielectric strength is given by

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

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Electrostatic and Capacitance
A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

3 V
6 V
4 V
0 V

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Electrostatic and Capacitance
A unit tube of flux is known as tube

Newton
Michale
None of the listed here
Farady

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