Suppose a motorcycle increases the downward component of the magnetic field within a loop only from 1.2 × 10-5 T to 1.9 × 10-5 T. The detector is square, is 0.75 m on a side, and has four loops of wire. Over what period of time must the magnetic field increase if it is to induce an emf of 1.4 × 10-4 V?
A. 0.028 s
B. 0.11 s
C. 0.35 s
D. 0.60 s