15) A metal bar with lengthL = 0.60 m ,mass m = 100 gram, and resistance R= 15 0 is placed on frictionl ess metal rails that are inclined at an angle Ø = 70° above the horizontal. The rails have negligible resistance. A uniform %3D %3D 1.60 T is directed upward as shown in Figure. magnetic field of magnitude B The bar is released from rest and slides down the rails. After the terminal speed (constant speed) has been reached, at what rate is electrical energy being converted to thermal energy in the resistance of the bar? (g = 10 m/s2). %3D A) 26.01 W B) 72.70 W C) 32.55 W D) 122.86 W E) 127.55 W

15) A metal bar with lengthL = 0.60 m ,mass m = 100 gram, and resistance R= 15 0 is placed on frictionl ess metal rails that are inclined at an angle Ø = 70° above the horizontal. The rails have negligible resistance. A uniform %3D %3D 1.60 T is directed upward as shown in Figure. magnetic field of magnitude B The bar is released from rest and slides down the rails. After the terminal speed (constant speed) has been reached, at what rate is electrical energy being converted to thermal energy in the resistance of the bar? (g = 10 m/s2). %3D A) 26.01 W B) 72.70 W C) 32.55 W D) 122.86 W E) 127.55 W

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter19: Magnetism

Section19.3: Magnetic Fields

Problem 19.1QQ: A charged particle moves in a straight line through a region of space. Which of the following...

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