Find out the speed of rod when potential difference is given
A long rod of 42 cm moves in a plane perpendicular to a magnetic field of 500 G. The velocity of rod is perpendicular to its length. Find out the speed of the rod when the potential difference between the ends is 8 V.
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The mass of drum is 150 kg and its radius is 0.76m. Determine the magnitude of the torque the engine applies to the drum? Avoid the mass of the cable.
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