Concept explainers
Five short segments (labeled 1-5) of acrylic rod are arranged as shown. All were rubbed with wool and have the same magnitude charge. A charged pith ball is placed in turn at the location marked by points A and B.
Indicate the approximate direction of the force on the pith ball at points A and B due to segment 5 alone.
What is the direction of the net force on the pith ball at points A and B? Explain how you determined your answer.
Does segment 2 exert a force on the pith ball when the pith ball is placed at point B? Explain.
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