A uniform magnetic field B is perpendicular to the plane of a circular wire loop of radius R. The magnitude of the field varies with time according to B=B0exp(-t/τ) where B0 and τ are constants. The time dependence of the induced emf in the loop is
The Attempt at a Solution
So with this I guessed that the time dependence would be option d) -exp(-t/τ)
Is this the correct answer?