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Electrostatic and Capacitance

Electrostatic and Capacitance
Electric intensity at any point in an electric field is equal to the at that point.

None of these
electric flux
potential gradient
magnetic flux density

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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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Electrostatic and Capacitance
The electrostatic force between two charges of one coulomb each and placed at a distance of 0.5 m will be

36 x 108 N
36 x 107 N
36 x 10 fa
36 x 109 N

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Electrostatic and Capacitance
The potential gradient across the material of low permittivity is than across the material of high permittivity.

None of these
greater
both (A) and (B)
smaller

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Electrostatic and Capacitance
The relative permittivity of free space is given by

1
2
100
10

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

0.024 F
0.12 F
0.8 F
0.6 F

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