Figure shown a closed surface which intersects a conducting sphere. If a positive charge is placed at the point P, the flux of the electric field through the closed surface

Options

A. will remain zero
B. will become positive
C. will become negative
D. data insufficient

Answer

B

Explanation

The induced charges on conducting sphere due to `+q` charge at `P` are as shown infigure.
Now net charge inside the closed dotted surface is negative. Hence, according to Gauss's theorem net flux is zero.