
Answer & explanation
Correct answer: option 1
$\text{Flux leaving the surface is taken as positive and Flux entering is taken as negative.}$
$ q = \epsilon_0 \Delta\phi = \epsilon_0 (\phi_2 - \phi_1)$

Correct answer: option 1
$\text{Flux leaving the surface is taken as positive and Flux entering is taken as negative.}$
$ q = \epsilon_0 \Delta\phi = \epsilon_0 (\phi_2 - \phi_1)$