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Electrostatic and Capacitance

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

2
1
100
10

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Electrostatic and Capacitance
When the voltage across a capacitor is tripled, the stored charge

Is cut to one-third
Doubles
Stays the same
Triples

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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
62, final
62, initial
37, final

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Electrostatic and Capacitance
Two 0.68 µF capacitors are connected in series across a 10 kHz sine wave signal source. The total capacitive reactance is

46.8 Ω
23.41 Ω
4.68 Ω
11.70 Ω

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Electrostatic and Capacitance
XC is inversely proportional to frequency and capacitance.

1

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

None of these
Capacitance
Inductance
Potential gradient

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