A solenoid is to have an inductance of 0.295 mH, a cross-sectional area of 5.91 x 10-4 m2, and a length of 34.9 cm.
(a) How many turns per unit length should it have?
_______ turns/m
(b) If the self-induced emf is -13.2 mV at a given time, at what rate is the current changing at that instant?
(Delta I)/(Delta t) =______ A/s