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A 1.00 kg copper rod rests on two horizontal rails 0.62 m apart and carries a...

A 1.00 kg copper rod rests on two horizontal rails 0.62 m apart and carries a current of 50 A from one rail to the other. The coefficient of static friction between rod and rails is 0.54. What is the smallest magnetic field (not necessarily vertical ) that would cause the rod to slide?

a) What is the angle of B from the vertical?

b) What is the magnitude of B?

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