A 3.83m -long coil containing 225 loops is wound on an iron core (average ?=1850?0) along with a second coil of 115 loops. The loops of each coil have a radius of 1.80cm . If the current in the first coil drops uniformly from 14.0A to zero in 92.0ms .
Determine the mutual inductance M. (units of H)
Determine the emf induced in the second coil. (units of Volts)