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A conducting rod of mass m and length l is free to move without friction on two parallel long conducting rails, as shown below. There is a resistance R across the rails. In the entire space around, there is a uniform magnetic field B normal to the plane of the rod and rails. The rod is given an impulsive velocity v0 – Finally, the initial energy 1/2 mv20(A) Will be converted fully into heat energy in the resistor (B) Will enable rod to continue to move with velocity v0 since the rails are frictionless. (C) Will be converted fully into magnetic energy due to induced current (D) Will be converted into the work done against the magnetic field |
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Answer» Correct :- (A) Will be converted fully into heat energy in the resistor Explanation :- Due to energy conservation |
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