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A horizontal tube with length L has two positive charges +Q1 and +Q2 on the edges. A small ball can move without friction inside the tube (see figure). This small ball has a charge +Q and the same diameter as the tube. Find the static equilibrium position for the small ball. (sigma F = 0). Hint: Ignore the gravity. Express the result as a function of Q1, Q2 and L.

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Reference No.:- M91707100

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