An engineer sees that the current in a coil of conducting wire goes from i1 = 0.200 A to i2 = 1.50 A in a time interval of Δt = 0.200 s. Assuming the coil's inductance is L = 3.00 mH, what is the magnitude of the average induced emf (in mV) in the coil for this time interval?

The magnitude of the average induced emf (in mV) in the coil for this time interval is 19.5 mV .

Explanation:

Induced voltage

e = L (di/dt)

e = 3* (1.5 - 0.2) / 0.20

e = 19.5 mV

the answer is 46 mls because when you add the speed per second it increses the speed

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