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Electrostatic and Capacitance

Electrostatic and Capacitance
The capacitor preferred for high frequency circuits is

Air
Paper
Mica
None of the listed here

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Electrostatic and Capacitance
The dielectric constant (relative permittivity) of glass is given by

0.1 to 0.4
2.0 to 4.0
5 to 100
0.5 to 1.0

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Electrostatic and Capacitance
To prevent the generation of static charges on rubber or flat leather

Conductive dressing is done
Oil compound dressing is done
Talcum powder is sprayed on the surface
Surface is moistened

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Electrostatic and Capacitance
A capacitor of 0.02 µF is larger than

All of these
2,000 pF
0.000020 F
200,000 pF

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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

11.70 Ω
46.8 Ω
4.68 Ω
23.41 Ω

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Electrostatic and Capacitance
Paper capacitors usually have a tolerance of

± 5%
None of the listed here
± 15%
± 10%

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