Draw an equipotential surface for a system consisting of two charges Q, -Q separated by a distance r in air.

Depict the equipotential surfaces for a system of two identical positive point charges placed at a distance d apart.

Draw the equipotential surfaces due to an isolated point charge.

Draw an equipotential surface in a uniform electric field?

What is the shape of equipotential surface for a given point charge q.

What is the shape of equipotential surface for a given point charge?

Determine the electrostaic energy of a system containing two charges 7muC and -2muC separated by a distance of 18 cm.