Question

Consider the electric field due to a non-conducting infinite plane having a uniform charge density.

• A. The electric field varies with distance from the plane in accordance with the inverse square law.
• B. The electric field is independent of the distance from the plane.
• C. The electric field is directly proportional to square of the distance from the plane.
• D. The electric field is varies inversely with the distance from the plane.

Answer 1

The correct option is B The electric field is independent of the distance from the plane.

Electric field due to a non-conducting infinite plane having uniform charge density $\left(\sigma \right)$ is given by $E=\frac{\sigma }{2{\epsilon }_0}$

We can see $E$ is independent of distance from the plane.