Marine Electrical Systems USCG Question #554 (Set 19)

What statement is true concerning the total resistance of a parallel circuit?

Official USCG Answer & Rule Citation

Correct Answer: Option C — The total resistance is smaller than that of the branch with the lowest resistance.

Adding parallel paths provides additional routes for current flow, effectively lowering the overall equivalent resistance. The total resistance of a parallel circuit is always smaller than the smallest individual branch resistance.

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