The Total solution for NCERT class 6-12
Two charges 2 μC and −2 µC are placed at points A and B 6cm apart.
(a) Identify an equipotential surface of the system.
(b) What is the direction of the electric field atevery point on this surface?
(a) The situation is represented in the given figure.
An equipotential surface is the plane on which totalpotential is zero everywhere. This plane is normal to line AB. The plane islocated at the mid-point of line AB because the magnitude of charges is thesame.
(b) The direction of the electric field at every point onthis surface is normal to the plane in the direction of AB.