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Physics, 02.04.2020 17:34 momochan74301

A very long, straight solenoid with a cross-sectional area of 2.33 cm2 is wound with 85.1 turns of wire per centimeter. Starting at t = 0, the current in the solenoid is increasing according to i(t)= ( 0.172 A/s2 )t2. A secondary winding of 5 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 3.2A ?

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