A rectangular loop of area A is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the field is allowed to vary in time according to B = Bmax e-t/τ, where Bmax and τ are constants. The field has the constant value Bmax for t < 0. Find the emf induced in the loop as a function of time.

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Marlie Valdez

7 December, 08:27

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Ally Roberts · Answer 1

Sounds like a job for integrals! Is there any other information? You would end up with B=Bmax (e-t^2/2T), if you do dt.