Assertion-The electric field at every point is normal to the equipotential surface passing through that point.
Reason- No work is required to move a test charge on an equipotential surface.
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false and R is also false.