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Electrostatic and Capacitance

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, initial
62, final
37, final
62, initial

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Electrostatic and Capacitance
The dielectric constant (relative permittivity) of glass is given by

2.0 to 4.0
5 to 100
0.1 to 0.4
0.5 to 1.0

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Electrostatic and Capacitance
A capacitor consists of two

Conductors separated by an insulator
Ceramic plates and one mica disc
Insulators separated by a dielectric
None of the listed here

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Electrostatic and Capacitance
The value of dielectric constant for vacuum is taken as

2
0
3
1

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Electrostatic and Capacitance
Electric displacement is a______quantity.

Both scalar & vector
Scalar quantity
None of the listed here
Vector quantity

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Electrostatic and Capacitance
The unit of dielectric strength is given by

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

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