\(\phi_A=E \times \pi R^2\)
\(\phi_B=-E \times \pi R^2\)
Flux through curved surface, \(C=\int\) E.ds
\(=\int Eds \cos 90^{\circ}=0\)
\(\therefore\) Total flux through cylinder \(=\phi_A+\phi_B+\phi_C=0\)
( $k$ ને કુલંબના અચળાંક તરીકે લો.)
($\sin 37^{\circ}=\frac{3}{5}$ લો)