Question

As shown in the figure, q charge is placed at the open end of the cylinder with one end open. The total flux emerging from the surface of cylinder is _____
(A) q/ε₀
(B) 2q/ε₀
(C) q/2ε₀
(D) zero

Answer 1

d option is correct because at surface the electric field component is acting perpendicular to the direction of surface at every point so flux is zero. Hope it helps you, comment if any query.