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

question 63

Multiple Choice

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

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