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Question

Electric charges are distributed in a small volume. The flux of the electric field through a spherical surface of radius 10 cm containing the total charge is 25 V-m. The flux through a concentric sphere of radius 20 cm will be?


A

25 V-m

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B

50 V-m

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C

100 V-m

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D

200 V-m

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Solution

The correct option is A

25 V-m


As the net charge enclosed for both spherical surfaces remains the same, flux remains the same.


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