Two point charges 3µC and - 3µC are placed at points A and B, 5 cm apart.
(i) Draw the equipotential surfaces of the system.
(ii) Why do equipotential surfaces get close to each other near the point charge?
(i) Equipotential surfaces of the system (dipole),
(ii) Equipotential surfaces get closer to each other near the point charges as strong electric field is produced there.
E = -∆V/∆r
E ∝ 1/∆r
where, small Ar represents strong electric field and vice-versa.