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Two particles A and B , ech carrying cha...

Two particles A and B , ech carrying charge Q are held fixed with a separation D between them. A particle C having mass m and charge q is kept at the middle point of the line AB. (a) If it is displaced throught a distance x perpendicular to AB, what would be the electric force experienced by it .(b) Assuming x ltltd, show that this force is proportional to x. (c) under what conditions will the jparicle C execute simple harmonic motion if it is released after such a small displacement? Find the time period of the oscillations if these conditions are stisfied.

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