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Electrostatic and Capacitance

Electrostatic and Capacitance
A 0.47 µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is

170 Ω
0.000169 Ω
17 Ω
1.7 Ω

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

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Electrostatic and Capacitance
The relative permittivity of free space is given by

10
100
2
1

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Electrostatic and Capacitance
Dielectric constant for mica is nearly

3 to 8
100
200
1 to 2

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Electrostatic and Capacitance
Permittivity is expressed in

Weber/meter
Weber/sq-m
Farad/meter
Farad/sq-m

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Electrostatic and Capacitance
Dielectric strength of a material depends on

thickness
moisture content
all of the listed here
temperature

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