The inductance of the coil is found to be 0.7H.
The EMF induced in the circuit is 2.80 voltage and the current in the circuit is changing from - 28.0 ma to 32 ma any time period of 15 milliseconds.
The relation between the inductance of the coil L, the EMF of the coil E, the change in current ∆I and change in the time period ∆t is given as,
E = L∆I/∆t
Putting values to find the inductance of the coil,
2.8 = L32-(-28)/15
L = 2.8 × 15/60
L = 0.7H
So, the inductance in the coil is 0.7H.
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