calculate the ratio of the total electric flux through cubical surface of side 10cm and a spherical surface of radius 10cm , when a charge of 5 micro coloumb is enclosed by them.

Dear Student

In both cases Electric flux would be same as the charge enclosed in it is same.

$\varphi = \frac{q_{in}}{{\epsilon }_o}$

Hence the ratio of the total electric flux through cubical surface of side 10cm and a spherical surface of radius 10cm is 1:1


Regards