Question: At the instant when the current in an inductor is increasing at a rate of 0.0640 A/s, the magnitude of the self-induced emf is 0.0160

At the instant when the current in an inductor is increasing at a rate of 0.0640 A/s, the magnitude of the self-induced emf is 0.0160 V.
(a) What is the inductance of the inductor?
(b) If the inductor is a solenoid with 400 turns, what is the average magnetic flux through each tum when the current is 0.720 A?

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