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Electrostatic and Capacitance

Electrostatic and Capacitance
The dielectric constant is the ability of a material to establish an electric field.

1

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Electrostatic and Capacitance
Dielectric strength ______ with increasing thickness

remains unaltered
increases
decreases
None of these

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Electrostatic and Capacitance
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.6 F
0.024 F
0.8 F
0.12 F

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Electrostatic and Capacitance
An electrolytic capacitor can be used for

AC only
AC & DC both
None of the listed here
DC only

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Electrostatic and Capacitance
Which medium has the least dielectric strength ?

Air
Paraffin wax
Water
Glass

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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

250 joules
150 joules
200 joules
50 joules

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