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Question:

when an AC sine wave current flows through an inductor the current?

A. leads the voltage B. is in phase with the voltage. C. is a square wave D. lags the voltage

Answer:

The answer is D; current will lag the voltage. Just remember ELI the ICE man. This is the way I was taught to remember this. ELI, E (voltage) leads I (current) in an inductor (L). ICE, I (current) leads E (voltage) in a capacitor (C).
Ohm's regulation applies to electric circuits; it states that the present with the aid of a conductor between 2 factors is at as quickly as proportional to the aptitude distinction or voltage for the era of the two factors, and inversely proportional to the resistance between them. or basically V I*R notice that Ohm's regulation word only to ohmic materials i.e. materials which obey ohm's regulation. not all materials persist with this V I*R relationship.

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