Question

a charge q is placed inside a close surface .what is the flux through the surface?

Answer 1

Hey MATE!!!

The flux through any closed surface containing charge 'q' is given by :

$<strong><em>Φ</em></strong><strong><em> </em></strong>=<strong><em> </em></strong><strong><em>Electric </em></strong><strong><em>field(</em></strong><strong><em>E</em></strong><strong><em>)</em></strong><strong><em> </em></strong><strong><em>.</em></strong><strong><em>dA(</em></strong><strong><em>S</em></strong><strong><em>m</em></strong><strong><em>a</em></strong><strong><em>l</em></strong><strong><em>l</em></strong><strong><em> </em></strong><strong><em>cross </em></strong><strong><em>section</em></strong><strong><em>) </em></strong>$

Or Φ = Intenal change ÷ epsilon

Hope it helps

HAKUNA MATATA :))