Concept explainers
In case A at right, a point Charge
In case B the +q charge is a distance s from the center of an acrylic rod with a total charge
Consider the following student dialogue:
Student 1: "The charge rod and the charged ball have the same charge,
Student 2: "No, in case B there are charges spread all over the rod. The charge directly below the point charge will exert the same force on
Neither student is correct. Discuss with your partners the errors made by each student. Write a correct description of how the forces compare in the space below. Explain.
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