Materials A metal cup A hard plastic rod and fur A metallic ball suspended by a thread Procedure Place the charged rod near to the uncharged ball and verify that the ball is attracted to the rod. The picture here shows a diagram of the side view and top view of the uncharged ball attracted to a charged rod. If the uncharged ball touches the rod then touch the ball with your finger to drain any acquired charge before you Hold the metal cup with your hand and place around the ball with the ball near but not touching the metal. If the ball is far below the lip of the cup then the metal cup effectively shields the ball from the electric field created by the Try to attract the ball with a charged rod outside the cup. Does the electric field of the rod reach inside the metal cup? Hold the rod in its position outside the cup as near as possible to the ball inside the cup. Slowly lower the cup and remove it, leaving the distance between the rod and ball about the What happens when the cup is removed? Explain in your own pictures and words how the metallic cup manages to shield the ball from the electric field of the rod. Suppose that the cup is used to shield the ball while not being allowed to contact your bare hand or other electrical conductor. (Perhaps you wear a rubber glove or hold it with a non-conductor) Will the shielding effect be the same? Before you try it predict what will happen and explain Try the experiment without touching the can with your hand or any other electrical conductor. Was your prediction verified or not?

Materials

Place the charged rod near to the uncharged ball and verify that the ball is attracted to the rod. The picture here shows a diagram of the side view and top view of the uncharged ball attracted to a charged rod. If the uncharged ball touches the rod then touch the ball with your finger to drain any acquired charge before you
Hold the metal cup with your hand and place around the ball with the ball near but not touching the metal. If the ball is far below the lip of the cup then the metal cup effectively shields the ball from the electric field created by the Try to attract the ball with a charged rod outside the cup. Does the electric field of the rod reach inside the metal cup?
Hold the rod in its position outside the cup as near as possible to the ball inside the cup. Slowly lower the cup and remove it, leaving the distance between the rod and ball about the What happens when the cup is removed? Explain in your own pictures and words how the metallic cup manages to shield the ball from the electric field of the rod.
Suppose that the cup is used to shield the ball while not being allowed to contact your bare hand or other electrical conductor. (Perhaps you wear a rubber glove or hold it with a non-conductor) Will the shielding effect be the same? Before you try it predict what will happen and explain
Try the experiment without touching the can with your hand or any other electrical conductor. Was your prediction verified or not?

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps