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Electrostatic and Capacitance

Electrostatic and Capacitance
The value of E within the field due to a point charge can be found with the help of

None of these
Coulomb’s laws
Faraday’s laws
Kirchhoff's laws

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

KVAR
KV
KW
KVA

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Electrostatic and Capacitance
The minimum value of potential gradient in a cable occurs in

uniformly all over
insulation
outer sheath
conductor

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Electrostatic and Capacitance
The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by

C/R
RC
R/C
1/RC

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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
An electrolytic capacitor can be used for

AC & DC both
DC only
AC only
None of the listed here

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