Question

Draw equipotential surfaces due to a point q>o.Are these surfaces equidistant from each other?If not explain why?

Answer 1

 the equipotential surfaces about a single charge are not equidistant because electric field due to a single charge is not constant.

Answer 2

Equipotential surface:

The equipotential surfaces due to a point charge is given in the image below. The black dot at the centre defines the charge (q > 0) while the red circles define the surfaces with equipotential.

Equipotential surfaces are not equidistant:

No, these surfaces are not equidistant from each other.

Reasons:

• In a point charge the potential difference reduces with the increase in the radius of the sphere. $\bold{V \ \infty \ r}$
• The electric field produced due to single charge is not constant.
• So, the distance between the circles varies.