Question

Nature of equipotential surface for a point charge is

• A. Ellipsoid with charge at foci.
• B. Sphere with charge at the centre of the sphere.
• C. Sphere with charge on the surface of the sphere.
• D. Plane with charge on the surface.

Answer 1

Answer: (B)

Sphere with charge at the centre of the sphere.

Answer 2

Electric potential due to point charge is given by the formula
$V=\frac{k q}{r}$
As, all the points on equipotential surface will be equidistance from the charge.
Hence, it is spherical symmetry.