Marine Electrical Systems USCG Question #188 (Set 7)

Two 100 watt light bulbs rated at 100 volts are connected in parallel across a 100 volt power supply. What will be the total power consumed by the two bulbs?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 200 watts

Total power consumed in a parallel circuit is the arithmetic sum of the power consumed by each individual load. Two 100-watt loads connected across their rated voltage sum directly to 200 watts total power consumption.

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