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Electrostatic and Capacitance

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

Ceramic
Mica
Paper
Oil

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Electrostatic and Capacitance
Which capacitor will be physically smaller for the same ratings ?

Both will be of equal size
None of these
Ceramic capacitor
Paper capacitor

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Electrostatic and Capacitance
Air capacitors are generally available in the range

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

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Electrostatic and Capacitance
The capacitance of a capacitor is not affected by

Area of plates
Thickness of plates
Distance between plates
All of the listed here

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Electrostatic and Capacitance
A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is

200 joules
150 joules
50 joules
250 joules

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Electrostatic and Capacitance
capacitors are used in transistor circuits.

Air
Paper
Electrolytic
Ceramic

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