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Electrostatic and Capacitance

Electrostatic and Capacitance
The capacitor preferred for high frequency circuits is

Air
None of the listed here
Mica
Paper

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Electrostatic and Capacitance
Air capacitors are generally available in the range

10 to 400 pF
200 to 300 pF
100 to 500 pF
1 to 20 pF

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Electrostatic and Capacitance
A 0.47 µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is

1.7 Ω
0.000169 Ω
17 Ω
170 Ω

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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
A 0.00022 F capacitor equals how many micro-farads?

22 µF
22,200 µF
2,200 µF
220 µF

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

Ceramic
Paper
Mica
Air

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