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Electrostatic and Capacitance

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

Air
Paper
Ceramic
Mica

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Electrostatic and Capacitance
The inverse of capacitance is called

conductance
elastance
susceptance
reluctance

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Electrostatic and Capacitance
Dielectric constant for mica is nearly

100
200
1 to 2
3 to 8

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Electrostatic and Capacitance
The true power in a capacitor is zero.

1

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Electrostatic and Capacitance
An electrolytic capacitor is generally made to provide

Variable capacitance
Low capacitance
Fixed capacitance
Large value of capacitance

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Electrostatic and Capacitance
A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

VR > VC
VR = VC
VC > VR
VR and VC = 0

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MORE MCQ ON Electrostatic and Capacitance

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