A solenoid inductor is wound on a form 0.80 m in length and…

A solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. A coil is tightly wound around the solenoid at its center. The coil’s resistance is 9.9 ohms. The mutual inductance of the coil and solenoid is At a given instant, the current in the solenoid is and is decreasing at the rate of At the given instant, what is the magnitude of the induced current in the coil?