Asked by angy

A straight horizontal sretch of copper wire carries a current of 28 A .What are the magnitude and direction of the magnetic field needed to float the wire that is to balance its weight? Linear density=46.6g/m
Answered by bobpursley
force=ILB
m/L * g = IB

mg/IL=.046*9.8/28=B

Answered by Anonymous
0.161T
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