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Unformatted text preview: a. On the diagram, sketch the circular path followed by the proton, indicating whether it moves clockwise or counter-clockwise. b. What is the radius of the path? c. The orbiting charge constitutes a current loop. What is the direction of its magnetic moment? a. See drawing. At the instant shown the force is to the right, so the proton runs in a counter-clockwise circle. b. We have from the 2nd law: qvB = mv 2 / r , so r = mv / qB . c. Out of the page (opposite to B ). v B Physics 54 Summer 2011 2...
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