Here is the question which I am struggling on, please help me!
Question: During a 56-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 5.0-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 Ω. The mutual inductance between the two coils is 3.2 mH.
1- What is the change in the primary current?
I need proficient help in the above question.