Marine Electrical Systems USCG Question #543 (Set 19)

In terms of load type, in what type of alternating current circuit will the voltage always lead the current?

Official USCG Answer & Rule Citation

Correct Answer: Option D — inductive circuit

In an inductive AC circuit, current lags voltage due to the counter-electromotive force generated by expanding and collapsing magnetic fields. Conversely, voltage always leads current in inductive loads, expressed by the mnemonic 'ELI the ICE man'.

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