A copper wire of length 05 cm is in a magnetic field of 20
A copper wire of length 0.5 cm is in a magnetic field of 2.0 T. If it has a mass of 1.0 g, what is the minimum current through the wire that would cause a magnetic force equal to its weight?
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a copper wire of length 05 cm is in a magnetic field of 20 t if it has a mass of 10 g what is the minimum current
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