What is the total resistance of the electrical circuit illustrated in figure "B" if the resistance of R1 is 2 ohms, R2 is 4 ohms, and R3 is 4 ohms and the battery voltage is 6 volts? EL-0019

Correct Answer: Option C — 1.00 ohms

For parallel or combination circuits, equivalent resistance is calculated using reciprocal formulas. Combining the specified parallel branches with R1 yields a total equivalent resistance of 1.00 ohm, demonstrating proper circuit reduction techniques mandated by IEEE 45 for marine electrical diagnostics.