A metal bar with length L = 0.40 m ,mass m = 200 gram, and resistanceR = 10 N is placed on frictionless metal rails that are inclined at an angleØ = 45° above the horizontal. The rails have negligible resistance. A uniformmagnetic field of magnitude B = 1.40 T is directed upward as shown in Figure.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 beingconverted to thermal energy in the resistance of the bar? (g = 10 m/s²).A) 26.01 W B) 72.70 W C) 32.55 W D) 122.86 W E) 127.55 W

Length of Bar= 0.4 m Mass= 0.2 Kg Resistance = 10 Ohms Magnetic Field= 1.4 T g= 10 m/s^2

A metal bar with length L = 0.40 m „mass m = 200 gram, and resistance R = 10 N is placed on frictionl ess metal rails that are indined at an angle Ø = 45° above the horizontal. The rails have negligible resistance. A uniform magnetic field of magnitude B = 1.40 T is drected upward as shown in Figure. 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 resi stance of the bar? (g = 10 m/s²).

A metal bar with length L = 0.40 m „mass m = 200 gram, and resistance R = 10 N is placed on frictionl ess metal rails that are indined at an angle Ø = 45° above the horizontal. The rails have negligible resistance. A uniform magnetic field of magnitude B = 1.40 T is drected upward as shown in Figure. 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 resi stance of the bar? (g = 10 m/s²).

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter32: Faraday’s Law Of Induction

Section: Chapter Questions

Problem 65PQ

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