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Electrostatic and Capacitance

Electrostatic and Capacitance
The capacitor preferred for high frequency circuits is

None of the listed here
Air
Mica
Paper

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Electrostatic and Capacitance
Dielectric strength of a medium is usually expressed in

N/mm
C/mm
KV/mm
None of the listed here

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Electrostatic and Capacitance
capacitors are used in transistor circuits.

Paper
Air
Ceramic
Electrolytic

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Electrostatic and Capacitance
When the plate area of a capacitor increases,

The voltage it can withstand increases
The capacitance increases
The capacitance is unaffected
The capacitance decreases

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Electrostatic and Capacitance
A 220 Ω resistor is in series with a 2.2 µF capacitor. The time constant is

2.42 µs
480 µs
24 µs
48 µs

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

Is cut to one-third
Stays the same
Triples
Doubles

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