Question

If the flux of the electric field through a closed surface is zero,
A. the electric field must be zero every where on the surface.
B. the total charge inside the surface must be zero
C. the electric field must be uniform throughout the closed surface
D. the charge outside the surface must be zero

Answer 1

Correct Answer - B
b. `phi = q_("in")/epsilon_0 or 0 = q_("in") /epsilon_0 rArr q_("in") = 0`.