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Electrostatic and Capacitance

Electrostatic and Capacitance
A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

50 KV/m
30 KV/m
10 KV/m
100 KV/m

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Electrostatic and Capacitance
A capacitor consists of

two conductors only
two insulators separated by a conductor
two insulators only
two conductors separated by an insulator

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Electrostatic and Capacitance
If three 15 uF capacitors are connected in series, the net capacitance is

20 uF
15 uF
10 uF
5 uF

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Electrostatic and Capacitance
The breakdown voltage for paper capacitors is usually

200 to 1600 volts
2000 to 3000 volts
more than 10000 volts
20 to 60 volts

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Electrostatic and Capacitance
Which of the following capacitors will have the least variation?

Paper capacitor
None of the listed here
Ceramic capacitor
Silver plate mica capacitor

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Electrostatic and Capacitance
A capacitor consists of two

Conductors separated by an insulator
None of the listed here
Ceramic plates and one mica disc
Insulators separated by a dielectric

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