What is the nature of equipotential surfaces around a point charge ?

Define equipotential surface.

Sketch two equipotential surfaces for a point charge.

What is an equipotential surface ?

Explain the concept of equipotential surfaces.

What is the shape of the equipotential surfaces for an isolated point charge ?

What is the nature of spinal nerves?

What is a point charge?

What is Dual nature of light?

Two point charges of magnitude +q and -q are placed at (-d/2, 0, 0) and (d/2, 0, 0) respectively. Find the equation of the equipotential surface where the potential is zero.

What is a test charge ?