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Electrostatic and Capacitance

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

Chemical effect
Induction
Magnetic effect
Photoelectric effect

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Electrostatic and Capacitance
A 220 Ω resistor is in series with a 2.2 µF capacitor. The time constant is

2.42 µs
24 µs
48 µs
480 µs

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

Air capacitor
Electrolytic capacitor
None of these
Mica capacitor

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Electrostatic and Capacitance
The unit of capacitance is

Ohm
Farady/m
Hennry
Farady

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Electrostatic and Capacitance
A capacitor consists of

two conductors separated by an insulator
two insulators only
two insulators separated by a conductor
two conductors only

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Electrostatic and Capacitance
Dielectric strength of a medium is usually expressed in

C/mm
KV/mm
None of the listed here
N/mm

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