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A particle of mass m carrying a charge `-q_(1)` starts moving around a fixed charge `+q_(2)` along a circulare path of radius r. Find the time period of revolution T of charge `-q_(1)`. |
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Answer» Electrostatic force on `-q_(1)` due to `q_(2)` will provide the necessary centripetal force, Hence, `(kq_(1)q_(2))/(r^(2))=(mv^(2))/(r ) implies v=sqrt((kq_(1)q_(2))/(mr))` Now, `T=(2 pi r)/(v)= sqrt((16 pi^(3)epsilon_(0)mr^(3))/(q_(1)q_(2))`. |
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