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Electrostatic and Capacitance

Electrostatic and Capacitance
If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is

Charged
Short-circuited
Satisfactory
Lossy

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Electrostatic and Capacitance
is that property of a capacitor which delays any change of voltage across it.

Potential gradient
Inductance
None of these
Capacitance

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Electrostatic and Capacitance
The units of capacitance are

Coulomb/volt
Hennry/wb
Volt/coulomb
Hennry

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Electrostatic and Capacitance
A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is

0.6 s
0.8 s
0.4 s
1.2 s

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Electrostatic and Capacitance
The potential gradient across the material of low permittivity is than across the material of high permittivity.

smaller
None of these
greater
both (A) and (B)

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Electrostatic and Capacitance
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be

40 N
120 N
60 N
30 N

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