Question

A point charge of 2 microcoulomb is at the corner of a cubic gaussian surface of 9cm edge. What is the net electric flux through the cube?

Answer 1

Answer:

By Gauss's law of electric flux,

Explanation:

Net electric flux (ΦNet) through the cubic surface is given by,

Where, ∈0 = Permittivity of free space

= 8.854 × 10−12 N−1C2 m−2

q = Net charge contained inside the cube = 2.0 μC = 2 × 10−6 C

∴

= 2.26 × 105 N m2 C−1

The net electric flux through the surface is 2.26 ×105 N m2C−1.