One solenoid is centered inside another. The outer one has alength of 50.0 cm and contains 6700 coils, while the coaxial inner solenoid is3.0 cm long and 0.120 cm in diameter and contains16 coils. The current in the outersolenoid is changing at 38.5A/s.
a) What is the mutual inductance of the sesolenoids?
b) Find the emf induced in the inner solenoid.