Question

Work done in bringing a charge from infinity to a point A is 12 J and in bringing it to point B is 16 J within electric field. The potential difference between the two point A B is how much?

Answer 1

V=W/Q(potential difference= work/ charge)

1.(point A) V= 12 / Q= 12/Q V

2. (point B) V= 16 / Q= 16/Q V
potential difference between A and B = potential at A-potential at B = (12-16)/Q = -4/Q V