Solving a problem in physics section 73 point 86 electr

Solving a problem in physics section 73 point 86 electr

86. A ball weighing 0.01 g is suspended on a silk thread in the air. A charge of 10−8 C is given to the ball. At what distance from below should a charge of 2 × 10–8 C be placed so that the tension force of the thread decreases by 2 times?

Additional information:

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