engineering physics MCQ #922

The equivalent resistance of two resistors in series is 10 ohm. When connected in parallel, their equivalent resistance is 2.4 ohm. The resistances are

engineering physics MCQ #922

  1. Question 1

    Q1. The equivalent resistance of two resistors in series is 10 ohm. When connected in parallel, their equivalent resistance is 2.4 ohm. The resistances are

    • A) 4 ohm, 6 ohm
    • B) 3 ohm, 7 ohm
    • C) 2 ohm, 8 ohm
    • D) 1 ohm, 9 ohm

    Answer: 4 ohm, 6 ohm

    Explanation: Using Rs = R1 + R2 = 10 and 1 / Rp = 1 / R1 + 1 / R2 = 1 / 2.4, we solve to get R1 = 4, R2 = 6