Marine Electrical Systems USCG Question #582 (Set 20)

What is the current flowing through R3 in figure "B" of the illustrated circuit when the switch is closed if the battery voltage is 12 VDC and resistance of R1 is 2 ohms, R2 is 3 ohms, and R3 is 6 ohms, respectively? EL-0019

USCG Exam Illustration EL-0019
USCG Examination Diagram: Illustration EL-0019
Official USCG Answer & Rule Citation

Correct Answer: Option A — 2 amps

Under USCG National Maritime Center examination standards, the accepted correct answer is: 2 amps.

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