Question: A coil has 4 0 0 turns and self - inductance 7 . 5 0 mH . The current in the coil varies with time

A coil has 400 turns and self-inductance 7.50 mH.The current in the coil varies with time according to i =(680 mA) cos (t/0.0250 s).(a) What is the maximum emf induced in the coil? (b) What is the maximum average flux through each turn of thecoil? (c) Att =0.0180 s, what is the magnitude of the induced emf?

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