Answered: You plan to move a rectangular loop of…

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

Chapter23: Faraday’s Law And Inductance

Section23.2: Motional Emf

Problem 23.3QQ: You wish to move a rectangular loop of wire into a region of uniform magnetic field at a given speed...

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You plan to move a rectangular loop of wire (consider only the loop at left) into a region of uniform magnetic field B at a given speed so as to induce an emf in the loop. The plane of the loop must remain perpendicular to the magnetic field lines as shown. In which orientation should you hold the loop while you move it into the region of B to generate the largest emf?

with the longer dimension of the loop parallel to the velocity vector

either the longer or shorter dimension may be placed parallel to v as the emf is the same regardless of orientation

In fact the induced emf has no correlation with loop dimensions.

with the shorter dimension of the loop parallel to the velocity vector

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