engineering physics MCQ #993

The equivalent resistance of two resistors in parallel is 2 ohm. If one resistor is 3 ohm, what is the other?

engineering physics MCQ #993

  1. Question 1

    Q1. The equivalent resistance of two resistors in parallel is 2 ohm. If one resistor is 3 ohm, what is the other?

    • A) 6 ohm
    • B) 3 ohm
    • C) 2 ohm
    • D) 1 ohm

    Answer: 6 ohm

    Explanation: 1/Rp = 1/R1 + 1/R2, so 1/2 = 1/3 + 1/R2, hence R2 = 6 ohm.