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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

0.000169 Ω
17 Ω
170 Ω
1.7 Ω

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Electrostatic and Capacitance
Capacitors are used for audio frequency and radio frequency coupling and tuning

Mica
Air
Paper
Ceramic

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

None of these
Potential gradient
Inductance
Capacitance

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Electrostatic and Capacitance
The units of capacitance are

Hennry
Hennry/wb
Coulomb/volt
Volt/coulomb

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Electrostatic and Capacitance
A region around a stationary electric charge has

None of the listed here
Both Electric & Magnetic
An electric field
A magnetic field

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Electrostatic and Capacitance
Two series capacitors (one 2 µF, the other of unknown value) are charged from a 24 V source. The 2 µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is

1 µF
2 µF
4 µF
8 µF

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