Shows two long metal rails placed horizontally and parallel to each other at a separation i. A uniform magnetic field b exists in the vertically downward direction. A wire of mass m can slide on the rails. The rails are connected to a constant current source which drives a current I in the circuirt. The friction coefficient between the rails and the wire is. (a) What should be the minimum value ofwhich can prevent the wire from sliding on the rails? (b) Describe the motion of the wire if the value ofis half the value found in the previous part.
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wire
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