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Electrostatic and Capacitance

Electrostatic and Capacitance
Which of the following capacitors is marked for polarity ?

Electrolytic
Air
Paper
Mica

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Electrostatic and Capacitance
If a third equal and similar charge is placed between two equal and similar charges, then this third charge will

move out of the field of influence of the two charges
remain in stable equilibrium
be in unstable equilibrium
not be in equilibrium

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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
37, final
62, initial
62, final

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Electrostatic and Capacitance
A capacitor of 0.02 µF is larger than

0.000020 F
All of these
200,000 pF
2,000 pF

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Electrostatic and Capacitance
Five time constants are required for a capacitor to charge fully or discharge fully.

1

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

0.12 F
0.024 F
0.6 F
0.8 F

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