Determine the potential at a point 0.50 m (i) from `a+20 muC` potential charge (ii) from `a-20 muC` point charge.

Potential at a point 0.1m from an isolated point charge is +100 volt. The nature of the point charge is

Determine the potential at a distance r from a point charge +q. How can the potential at a point be determined due to a number of point charges?

The potential at a point 0.1 m from an isolated point charge is +100 volt. Find the nature and magnitude of the point charge.

The potential at a point is 20 V. The work done to bring a charge of 0.5 C from infinity to this point will be