(a) Two identical point charges q are located on the
Chapter 15, Problem 15.51(choose chapter or problem)
(a) Two identical point charges q are located on the y-axis at y a and y a. What is the electric eld along the x -axis at x b? (b) A circular ring of charge of radius a has a total positive charge Q distributed uniformly around it. The ring is in the x 0 plane with its center at the origin. What is the electric eld along the x axis at x b due to the ring of charge? [Hint: Consider the charge Q to consist of many pairs of identical point charges positioned at the ends of diameters of the ring.]
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