4. Experimental Question& Prediction: After exploring the behavior of charged pa

Question

4. Experimental Question& Prediction: After exploring the behavior of charged particles, you will investigate how a charged particle can create a force on an initially neutral particle. Let's come back to the case of the charging rod in the cradle, and consider the case where you put a neutral rod in the cradle (a charging rod before it has been charged). When the charging rod in the cradle is neutral, how do you think it will respond when you hold the negatively charged rod next to it, without touching it? Will it attract, repel, or have negligible force? You may use the diagram in Figure 3, ideas from your class/ textbook, and/or knowledge from another course like chemistry where induced dipole interactions may have been addressed In a normal insulator, the minus charges are centered over the plus charges

Explanation / Answer

it will attract. In the presence of the negatively charged rod, the center of the positive charges are displaced in the direction of the electrons while the center of the negatively charge are displaced away in the opposite direction. this creates an attraction between the positive charge present at the peripherry of the ball and the rod.

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