A copper rod 0150 m long and with a mass of 00500 kg is, Ask an Expert

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A copper rod 0.150 m long and with a mass of 0.0500 kg is suspended from two thin, flexible wires. At right angles to the rod is a uniform magnetic field of 0.550 T pointing into the page. Find (a) the direction and (b) the magnitude of the electric current needed to levitate the copper rod.

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Category:- Physics
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