1. A thin rod of length l = 30 cm bear uniformly distributed along the length of the linear charge density SCLC τ = 1 / m. At a distance r0 = 20 cm from the bar is a charge Q1 = 10 nC, equidistant from the ends of the rod. Determine the force F interaction point charge Q1 charged with the rod.

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