One solenoid is centered inside another. The outer one has a length of 48.0cm and contains 6600 coils, while the coaxial inner solenoid is 3.00cm long and 0.100cm in diameter and contains 20.0 coils. The current in the outer solenoid is changing at 38.0A/s.
What is the mutual inductance of these solenoids? and
Find the emf induced in the inner solenoid