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# Solved: A uniform magnetic field is perpendicular to the

## Problem 82 Chapter 30

Fundamentals of Physics | 10th Edition

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Fundamentals of Physics | 10th Edition

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Problem 82

A uniform magnetic field is perpendicular to the plane of a circular wire loop of radius r. The magnitude of the field varies with time according to B ! B0e't/t , where B0 and t are constants. Find an expression for the emf in the loop as a function of time.

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PHYSICS 2401 WEEK 8 Chapter 28 DC Circuits Ideal Battery: Remember : Ph= I * R = V /R = V*I Model of non-ideal battery (real life) r = internal resistance ε= open current voltage Isc = ε /r  comes from R = V/I V t I*R =L ε - I*r Battery Pb= P h 2* 2* ε*I = I r + I R * * ε = I r + I RL EX. A...

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