20. The figure shows a rod that is forced to move at constant speed v = 2.0 m/s along the horizontal rails, which are separated by distance L = 10 cm. The rod, rails, and connecting resistor at the left form a conducting loop. The entire apparatus is placed in a uniform 0.80 T magnetic field pointing into the page. If the induced current through the loop is 10 mA, what is the force applied to the rod? Assume no mechanical resistance and all energy supplied by the force turns into heat in the loop. (1) 220 (N (2) 4 mN (3) 48 mN y (4) 12 mN (5) 0.8 m

20. The figure shows a rod that is forced to move at constant speed v = 2.0 m/s along the horizontal rails, which are separated by distance L = 10 cm. The rod, rails, and connecting resistor at the left form a conducting loop. The entire apparatus is placed in a uniform 0.80 T magnetic field pointing into the page. If the induced current through the loop is 10 mA, what is the force applied to the rod? Assume no mechanical resistance and all energy supplied by the force turns into heat in the loop. (1) 220 (N (2) 4 mN (3) 48 mN y (4) 12 mN (5) 0.8 m

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 65AP: In Figure P20.65 the rolling axle of length 1.50 m is pushed along horizontal rails at a constant...

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