Question

A hemispherical body is placed in a uniform electric field E. What is the flux linked with curved surface, if field is perpendicular to base in figure.

• A. $2\pi R^{2}E$
• B. $\pi R^{2}E/2$
• C. $\pi R^{2}E$
• D. Zero

Answer 1

The correct option is C $\pi R^{2}E$

The flux entering the hemisphere is equal to the flux leaving it,
Thus,
${\varphi }_{in}={\varphi }_{out}$
${\varphi }_{out}=\pi R^{2}E$