A negatively-charged plastic rod is brought close to (but does not touch)a neutral metal sphere that is connected to ground.After waiting a few seconds,the ground connection is removed (without touching the sphere),and after that the rod is also removed.The sphere is now

Question

Quizplus · Accepted Answer

The negatively-charged plastic rod induced a separation of charges in the metal sphere, with positive charges being attracted to the side closest to the rod and negative charges being repelled to the opposite side. However, when the ground connection was removed, the negative charges were free to move throughout the sphere, leaving the positive charges behind on the side closest to the rod. Thus, the sphere is left with a net positive charge, making choice B the correct answer.

A Negatively-Charged Plastic Rod Is Brought Close to (But Does