There is a solenoid (infinitely long) that is filled with aferromagnetic material. The magnitization, N is uniform and isparallel to the axis of the solenoid. Made out of a nonmagnetizedmaterial there is a conducting oval loop. I put the loop around thesolenoid. Find the mutual inductance of the solenoid and the loop.I remove the magnetic core. Find the mutual inductance of thesolenoid and the loop.
