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Electrostatic and Capacitance

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

uniformly all over
conductor
insulation
outer sheath

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Electrostatic and Capacitance
The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as

Magnetic effect
Photoelectric effect
Chemical effect
Induction

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Electrostatic and Capacitance
In order to remove static electricity from machinery

construct insulated cabins
humidify the surroundings
insulate the machinery
ground the framework

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Electrostatic and Capacitance
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be

40 N
30 N
120 N
60 N

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Electrostatic and Capacitance
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value

45
42
54
37

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

KVAR
KVA
KV
KW

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