Problem: A flat, circular, steel loop of radius 75 cm is at rest in a uniform magnetic field, as shown in an edge-on view in the figure. The field is changing with time, according toε(t) = 0.122e-(0.057)tWhen is the induced emf equal to 1/18 of its initial value?

FREE Expert Solution

Comparing with ε(t) = ε0e-ct

ε0 = 0.122

(1/18)ε0 = 0.122/18

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Problem Details

A flat, circular, steel loop of radius 75 cm is at rest in a uniform magnetic field, as shown in an edge-on view in the figure. The field is changing with time, according to

ε(t) = 0.122e-(0.057)t

When is the induced emf equal to 1/18 of its initial value?

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