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A rectangular loop of wire is immersed in a non-uniform and time-varying magnetic field. The magnitude...

A rectangular loop of wire is immersed in a non-uniform and time-varying magnetic field. The magnitude of the field is given by B = 4t2x2 , where t is the time in seconds and x is one dimension of the loop. The direction of the field is always perpendicular to the plane of the loop. The loop extends from x = 0 to x = 3.0 m and from y = 0 to y = 2.0 m. What is the magnitude of the induced emf in the loop at t = 0.10 s?

(a) 12 V

(b) 14 V

(c) 16 V

(d) 18 V

(e) 20 V

The answer is (b), I just do not understand how to solve this problem. Thanks!

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