Fire Protection Electrical Engineer (소방설비기사 전기분야)

Practice session

Three resistors with resistances R1 = 10 Ω, R2 = 15 Ω, and R3 = 30 Ω are connected in parallel across a 24 V DC fire alarm control panel bus. What is the total equivalent resistance of this parallel combination and the total current drawn from the supply?

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