In Figure, the rod has a resistance R and the rails are horizontal and have negligible resistance.
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In Figure, the rod has a resistance R and the rails are horizontal and have negligible resistance. A battery of emf E and negligible internal resistance is connected between points a and b such that the current in the rod is downward. The rod is placed at rest at t = 0.
(a) Find the force on the rod as a function of the speed v and write Newton's second law for the rod when it has speed v.
(b) Show that the rod moves at a terminal speed and find an expression for it.
(c) What is the current when the rod will approach its terminal speed?
Transcribed Image Text:
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a The net emf that drives a current in this circuit is the emf of the battery minus the indu...View the full answer
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ISBN: 978-0195134889
1st Edition
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