Figure shows a long, non-conducting, mass less rod of length L, pivoted at its center and balanced
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Figure shows a long, non-conducting, mass less rod of length L, pivoted at its center and balanced with a block of weight W at a distance x from the left end. At the left and right ends of the rod are attached small conducting spheres with positive charges q and 2q, respectively. A distance h directly beneath each of these spheres is a fixed sphere with positive charge Q.
(a) Find the distance x when the rod is horizontal and balanced.
(b) What value should have so that the rod exerts no vertical force on the bearing when the rod is horizontal and balanced?
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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