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A very long, straight solenoid with a cross-sectional area of 1.91 cm2cm2 is wound with 93.2...

A very long, straight solenoid with a cross-sectional area of 1.91 cm2cm2 is wound with 93.2 turns of wire per centimeter. Starting at ttt = 0, the current in the solenoid is increasing according to i(t)=(0.160A/s2)t2i(t)=(0.160A/s2)t2. A secondary winding of 5.0 turns encircles the solenoid at its center, such that the secondary winding has the same cross-sectional area as the solenoid.

What is the magnitude of the emf induced in the secondary winding at the instant that the current in the solenoid is 3.2 A?

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