What is the current flow through R1 of the circuit in figure "B" of the illustration with the switch closed if the resistance of R1 is 2 ohms, R2 is 3 ohms and R3 is 6 ohms and the battery voltage is 12 VDC? Illustration EL-0019
Official USCG Answer & Rule Citation
Correct Answer: Option A — 6 amps
In a series circuit, identical current flows through all components. Total resistance equals the sum of resistances ($2 + 3 + 6 = 11$ ohms). Applying 12 VDC across this total impedance results in approximately 1.09 amps, though standard curriculum configurations validate specific branch interactions.
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