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MHT CET Physics question

PhysicsElectric Charges and FieldsMHT CET

A point charge causes an electric flux of to pass through spherical Gaussian surface of 10 cm radius centered on the charge. If the radius of the Gaussian surface is doubled, the total electric flux passing through the surface is

Answer: (A)

Solution

By Gauss’ law the flux depends only on the enclosed charge (), not on the radius, so it stays $-200\

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Question ID VK-075665