In the figure below, a metal rod is forced to move with constant velocity along two parallel metal rails, connected with a strip of metal on one end. A magnetic field of magnitude B = .5 T points out of the page. L B a) If the rails are separated by L = 25 cm and the speed of the rod is 50 cm/s, what emf is generated? b)If the rod has resistance 20 Ohm and connector has negligible resistance, what is the current in the rod? A c) At what rate the energy is being transferred to thermal energy? d)What external force is needed to maintain the constant velocity?

In the figure below, a metal rod is forced to move with constant velocity along two parallel metal rails, connected with a strip of metal on one end. A magnetic field of magnitude B = .5 T points out of the page. L B a) If the rails are separated by L = 25 cm and the speed of the rod is 50 cm/s, what emf is generated? b)If the rod has resistance 20 Ohm and connector has negligible resistance, what is the current in the rod? A c) At what rate the energy is being transferred to thermal energy? d)What external force is needed to maintain the constant velocity?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter20: Induced Voltages And Inductance

Section: Chapter Questions

Problem 56AP

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