Multiple Choice
A copper wire of length 10 cm is in a magnetic field of 0.30 T.If it has a mass of 20 g,what minimum current through the wire would cause a magnetic force equal to its weight?
A) 4.9 A
B) 6.5 A
C) 2.0 A
D) 1.3 A
Correct Answer:
Verified
Correct Answer:
Verified
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