Marine Electrical Systems USCG Q#71 (Set 3)

Consider a series circuit employing two resistors. What is true about the resistance value of the second resistor compared to the first when the voltage drop across the first resistor is one half the source voltage?

Official USCG Answer & Rule Citation

Correct Answer: Option B — the second resistor has a resistance value equal to that of the first

In a series circuit where a resistor drops half the source voltage, remaining circuit resistance must equal that first resistor to maintain proportional voltage division per Ohm's Law.

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