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Q1) a long straight conductor carrying a current lies along the axis of a ring. the conductor will exert a force on the ring if the ring a) carries a current b) has uniformly distributed charge c) has nonuniformly distributed charge d) none of the above Q2) in the above question, let the ring have nonuniformly distributed charge, and let it be spinning about its axis. Let F be the net force and T be the torque of the ring due to straight conductor.then explain how is F=0 and T=0 ?
The force and torque are zero because the both fields are aligned
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