Question

Work done to move a charge 10c .between two point in equipotential surface of 5 volt is

Answer 1

equipotential surface is the surface where potential remains constant. means, potential difference between two points on equipotential surface equals to zero.
e.g., $\Delta V=0$......(1)

we know, workdone = charge × potential difference
= 10 C × 0v
= 0

hence, workdone to move charge 10c between two points in equipotential surface = 0 J