Answer to Question #294650 in Physics for Wellen

Question

Using a zero reference potential at infinity, determine the amount by which a point charge of 8 x 10-8 alter the electric potential at point 1.5 m away where the charge is (a) positive and (b) negative.

With complete Solution Thank you.

Answer 1

The potential of a charge 1.5 m away from it is

$$\phi=kq/r=479\text{ V}.$$

The negative and positive charges create the potential of the found magnitude of the respective sign.