A plastic rod is charged up by rubbing a wool cloth,and brought to an initially neutral metallic sphere that is insulated from ground.It is allowed to touch the sphere for a few seconds,and then is separated from the sphere by a small distance.After the rod is separated,the rod

Question

Quizplus · Accepted Answer

When the charged plastic rod touches the initially neutral metallic sphere, it transfers some of its charge to the sphere. Since like charges repel, once the rod is separated from the sphere, it is repelled by the sphere due to the like charges on both objects.

A Plastic Rod Is Charged Up by Rubbing a Wool