A conducting rod of length = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 2, as shown in the figure. The wire and the rod are in the plane of the page. A constant uniform magnetic field of strength 0.40 T is applied perpendicular to and into the paper. An applied external force pulls the rod to the right with a constant speed of 6.0 m/s. a) Calculate the induced emf in the rod. b) Find the magnitude and the direction of the induced current in the resistor. c) Calculate the power dissipated in the resistor during the time when the rod moves in the field. d) Calculate the external force necessary to move the rod at constant speed through the magnetic field. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X B-field in (x) F applied

A conducting rod of length = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 2, as shown in the figure. The wire and the rod are in the plane of the page. A constant uniform magnetic field of strength 0.40 T is applied perpendicular to and into the paper. An applied external force pulls the rod to the right with a constant speed of 6.0 m/s. a) Calculate the induced emf in the rod. b) Find the magnitude and the direction of the induced current in the resistor. c) Calculate the power dissipated in the resistor during the time when the rod moves in the field. d) Calculate the external force necessary to move the rod at constant speed through the magnetic field. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X B-field in (x) F applied

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 69AP: The conducting rod shown in the accompanying figure moves along parallel metal rails that are 25-cm...

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