A 0.100m long solenoid has a radius of 0.05m and 15000 turns. The current in the solenoid changes at a rate of 6.0 A/s. A conducting loop of radius 0.0200m is placed at the center of the solenoid with its axis the same as that of the solenoid. Determine the mutual inductance of this combination.
The Attempt at a Solution
The answer has to be the induced emf divided by the rate of current change(6 A/s), but I just don't understand where and how we can glean the emf from the information given. I'm having a hard time on this emf stuff. I thought I understood very well how and when it is induced, but this is the second instance that I've had to solve for two variables and I just don't know how my teacher expects us to do it.