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

A coil has 450 turns and self-inductance 7.50 mHmH. The current in the coil varies with time according to i=(680mA)cos[t/(0.0250s)]i=(680mA)cos[t/(0.0250s)]. What is the maximum emf induced in the coil?

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