l. What happens to the net electric flux through the surface of a sphere when th

Question

l. What happens to the net electric flux through the surface of a sphere when the charge inside the sphere is cut in half? a. It is doubled. b. It is cut in half. c. It decreases by a factor of four. d. It increases by a factor offour. e. It remains the same 2. A charge q is located inside a cube of sider what happens to the electric flux when the cube is replaced by a spherical surface of radius r? a. It changes by a factor of 1 m. b. It changes by a factor of c. It changes by a factor of 4T d. It changes by a factor of r. e. It remains the same.

Explanation / Answer

For 1

Option b

Since flux through a closed surface is given by

E = Q/0

Hence if charge is cut half then the flux will become half.

For 2

Option e

Since flux through a closed surface is given by

E = Q/0

And it has nothing to do with the shape of closed surface until charge is not changed.    

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