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    nishantsahay2000 Posts: 1, Reputation: 1
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    Mar 21, 2010, 11:12 PM
    Three identical sphere of charge Q suspended from common poin with length l
    3 small spheres of mass m are suspended by the threads of negligible masses and length l from a common point. A charge Q is divided equally between the sphere and they come to equilibrium at the corner of the horizontal equilateral triangle whose sides are d. show that
    Q*Q= 12 ∏ є mg d*d*d [(l*l)-(d*d/3)]^ -1/2

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