Question

A point charge q is placed at the centre of a cube of side length a. The electric flux emerging from one of the face of cube is

Answer 1

Given:

A point charge q is placed at the centre of a cube of side length a.

To find:

Electric Flux emerging from one face of the cube.

Calculation:

Since the point charge is located at the centre of the cube , so equal amount of flux will be emerging from each of the face of the cube.

Total number of faces in cube = 6.

As per Gauss' Theorem:

$\therefore \: 6 \times ( \phi) = \dfrac{q}{\epsilon_{0}}$

$= > \: \phi = \dfrac{1}{6} \bigg \{ \dfrac{q}{\epsilon_{0}} \bigg \}$

So, final answer is :

$\boxed{ \sf{ \: \phi = net \: flux \: through \: one \: face = \dfrac{1}{6} \bigg \{ \dfrac{q}{\epsilon_{0}} \bigg \}}}$

Answer 2

$\huge{\mathbb{\red{ANSWER}..}}$

If a point charge Q is placed at the Centre of a cube What is the flux linked with the cube.

The outward flux of a current density J through the surface of a cube is zero.

$\huge{\mathbb{\green{Thanks.....}}}$