CUET Preparation Today
A hemisphere of radius r is placed in a uniform electric field of strength E. The electric flux through the hemisphere is |
$E.\pi r^2$ $-E \pi r^2$ $2E\pi r^2$ Zero |
$-E \pi r^2$ |
$\phi = -E\pi r^2$ $\text{Negative sign is because the field lines are entering the surface}$ |
