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Charge Q is uniformly distributed over a body. How should the body be divided into two parts, so that force acting between the two parts of body is maximum for a separation between them ? |
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Answer» SOLUTION :CHARGE Q is UNIFORMLY distributed over the body. Now, suppose the body is broken into two parts such that the charge on one part of body is q and on the other is Q - q. The force existing between the two parts separated by distance r will be, `F =k(q(Q-q))/r^(2)` Now, for the MAXIMUM force E. `q(Q-q) = Qq-q^(2)` should be maximum. `therefore q = Q/2` |
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