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Electrostatic and Capacitance

Electrostatic and Capacitance
Four 0.15 µF capacitors are in parallel. The total capacitance is

0.30 µF
0.15 µF
0.8 µF
0.6 µF

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Electrostatic and Capacitance
A 2 µF, a 4 µF, and a 10 µF capacitor are connected in series. The total capacitance is less than

4 µF
2 µF
10 µF
1.5 µF

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Electrostatic and Capacitance
Which of the following materials has the highest value of dielectric constant?

Glass
Paper
Ceramic
Mica

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Electrostatic and Capacitance
Which of the following material has least value of dielectric constant ?

Mica
Ceramic
Paper
Oil

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

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

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Electrostatic and Capacitance
Capacitors can be used only for D.C.

Air
Paper
Electrolytic
Mica

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