79. A charge of 1.6 ∙ 10−9 C is communicated to a hollow metal ball of a radius of 10 cm that is in the air. Determine the potential: a) inside the ball; b) on the surface of the ball; c) at a distance of 0.5 m from the center of the ball.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)