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Electrostatic and Capacitance

Electrostatic and Capacitance
The dissipation factor of a good dielectric is of the order of

0.002
0.2
0.0002
2.0

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Electrostatic and Capacitance
Air capacitors are generally available in the range

10 to 400 pF
100 to 500 pF
200 to 300 pF
1 to 20 pF

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Electrostatic and Capacitance
The units of volume charge density are

Coulomb/meter
Coulomb/meter
Coulomb/meter
Coulomb/meter

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Electrostatic and Capacitance
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.8 F
0.6 F
0.024 F
0.12 F

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Electrostatic and Capacitance
Permittivity is expressed in

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

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Electrostatic and Capacitance
A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

50 KV/m
100 KV/m
30 KV/m
10 KV/m

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