A solenoid is to have an inductance of 0265 mh a, Ask an Expert

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A solenoid is to have an inductance of 0.265 mH, a cross-sectional area of 5.58 10-4 m2, and a length of 40.4 cm.

(a) How many turns per unit length should it have?

turns/m

(b) If the self-induced emf is -14.7 mV at a given time, at what rate is the current changing at that instant?

= A/s

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