Question

IF a dipole of charge of 2uC is placed inside a sphere of radius 2m what is the net flux linked with the sphere

Answer 1

Flux= charge/ epsilon
Since dipole is +q and -q
The net charge is 0.
Therefore, flux= 0/epsilon = 0

Answer 2

Answer : Flux linked with the sphere is zero.

Explanation :

It is given that,

A dipole of charge $2\ \mu C$ is placed inside a sphere of radius 2 m as shown in attached figure.

Electric flux is defined as the number of electric field lines passing through any surface i.e.

$\phi=EA\ cos\theta$

or

According to Gauss's law:

$\phi=\dfrac{total\ charge}{\epsilon_0}$

The total charge inside the sphere (Gaussian surface) is equal to zero as the field lines entering over the surface is equal to the field lines terminating from the sphere.

Hence, the total flux is equal to zero.