Figure 27.39 shows a pair of parallel conducting rails a distance l apart in a uniform
Chapter 27, Problem 44(choose chapter or problem)
Figure 27.39 shows a pair of parallel conducting rails a distance l apart in a uniform magnetic field . A resistor R is connected across the rails, and a conducting bar of negligible resistance is being pulled along the rails with velocity to the right. (a) What direction is the current in the resistor? (b) At what rate does the agent pulling the bar do work?
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