MaterialsA metal cupA hard plastic rod and furA metallic ball suspended by a threadProcedurePlace 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 continue. 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 rod. Try to attract the ball with a charged rod outside the cupQuestions:a. 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 explainb. Try the experiment without touching the can with your hand or any other electrical conductor. Was your prediction verified or not?

CASE 1. The ball is uncharged but the rod is charged. So Initially the ball is uncharged so due to…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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 continue.
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 rod. Try to attract the ball with a charged rod outside the cup

Questions:

a. 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

b. Try the experiment without touching the can with your hand or any other electrical conductor. Was your prediction verified or not?

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