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Electrostatic and Capacitance

Electrostatic and Capacitance
The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be

36 x 10 fa
36 x 108 N
36 x 107 N
36 x 109 N

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Electrostatic and Capacitance
The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to ______ percent of its value.

37, final
62, final
37, initial
62, initial

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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

Photoelectric effect
Magnetic effect
Induction
Chemical effect

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Electrostatic and Capacitance
capacitors are used in transistor circuits.

Electrolytic
Ceramic
Paper
Air

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Electrostatic and Capacitance
Capacitors can be used only for D.C.

Paper
Electrolytic
Air
Mica

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

conductor
outer sheath
uniformly all over
insulation

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