A Magnetic Field Is Directed Perpendicular to the Plane of a 0.15-M

A magnetic field is directed perpendicular to the plane of a 0.15-m × 0.30-m rectangular coil consisting of 240 loops of wire. To induce an average emf of -2.5 V in the coil, the magnetic field is increased from 0.1 T to 1.8 T during a time interval $\Delta$ t. Determine $\Delta$ t.

A) 0.053 s
B) 0.13 s
C) 12 s
D) 6.4 s
E) 7.3 s

Correct Answer:

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