A conducting wire is moved along a U-shaped conducting rail with a constant speed v. A constant magnetic field B is perpendicular ot the plane of the page, in the direction shown. The wire has a length L and, initially, the wire is a distance d from the end of the rail. Both the wire and rail have a resistance R. - X X X X|| × x _ X X X X B X|| x X X X X X X X X X X X X X X X X X X X X X X In what direction is the induced current? Using variables, with what force must the wire be moved so that it moves at a constant speed?

A conducting wire is moved along a U-shaped conducting rail with a constant speed v. A constant magnetic field B is perpendicular ot the plane of the page, in the direction shown. The wire has a length L and, initially, the wire is a distance d from the end of the rail. Both the wire and rail have a resistance R. - X X X X|| × x _ X X X X B X|| x X X X X X X X X X X X X X X X X X X X X X X In what direction is the induced current? Using variables, with what force must the wire be moved so that it moves at a constant speed?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Magnetic Forces And Magnetic Fields

Section: Chapter Questions

Problem 51P

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