Calculate the amount of work done in shifting a charge of 2C from a point A to B having potential 10V and -5V respectively.
Calculate the work done to carry a charge of 3 C, if the potential difference between two points is 10 V.
Two points have a potential difference of 10 V. After connecting a conductor with zero resistance between the points, the final potential at each point becomes 25 V. What could be their initial potentials?