A 2.44 m long solenoid containing 300 loops is wound on an iron core (magnetic permeability m = 2000 m0) along with a second coil of 100 loops. The loops of each coil have a radius of 2.00 cm. If the current of the first coil drops uniformly from 12.0 A to zero in 98.0 ms, determine (a) the mutual inductance M, and (b) the emf induced in the second coil.

A 2.44 m long solenoid containing 300 loops is wound on an iron core (magnetic permeability m = 2000 m0) along with a second coil of 100 loops. The loops of each coil have a radius of 2.00 cm. If the current of the first coil drops uniformly from 12.0 A to zero in 98.0 ms, determine (a) the mutual inductance M, and (b) the emf induced in the second coil.

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