L=0.50m M=80grR=5ohmØ=50°B=0.50T BA metal bar with length L = m ,mass m = 0 gram, and resistanceR =is placed on frictionl ess metal rails that are inclined at an angleabove the horizontal. The rails have negligible resistance. A uniformmagneti c field of magnitude B = 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 wnat rate is electrical energy beingconverted to thermal energy in the resi stance of the bar? (g = 10 m/s²).A) 26.01 WB) 72.70 WC) 32.55 W D) 122.86 W E) 127.55 With1onoth

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r with length L = m ,mass m 0 gram, and re

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 83A

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Question

L=0.50m M=80gr R=5ohm Ø=50° B=0.50T

B
A metal bar with length L = m ,mass m = 0 gram, and resistance
R =
is placed on frictionl ess metal rails that are inclined at an angle
above the horizontal. The rails have negligible resistance. A uniform
magneti c field of magnitude B = 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 wnat rate is electrical energy being
converted to thermal energy in the resi stance 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
ith
1onoth

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