A 0.30-m-long metal bar is pulled to the left at constant speed of 20 m/s perpendicular to a uniform 2.0 T magnetic field. The bar rides on parallel metal rails connected through a 6.0 Ω resistor, so the apparatus makes a complete circuit, as shown in the figure below. Ignore the resistance of the bar and the rails. a) Calculate the emf induced in the circuit. b) Calculate the current through the resistor and indicate its direction. c) Calculate the magnetic force exerted on the bar and indicate its direction.

A 0.30-m-long metal bar is pulled to the left at constant speed of 20 m/s perpendicular to a uniform 2.0 T magnetic field. The bar rides on parallel metal rails connected through a 6.0 Ω resistor, so the apparatus makes a complete circuit, as shown in the figure below. Ignore the resistance of the bar and the rails. a) Calculate the emf induced in the circuit. b) Calculate the current through the resistor and indicate its direction. c) Calculate the magnetic force exerted on the bar and indicate its direction.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter2: Relativity Ii

Section: Chapter Questions

Problem 9Q

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