16. An electrostatic field is created in a vacuum by a ball of radius R = 10 cm uniformly charged with a total charge of Q = 1 nC. Determine the intensity E of the electrostatic field: 1) at a distance r1 = 2 cm from the center of the ball; 2) at a distance of r2 = 8 cm from the center of the ball. Build a plot of E (r).

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