everyday science MCQ #50018

Two resistors of 6 Ω and 3 Ω are connected in parallel. The equivalent resistance is:

everyday science MCQ #50018

  1. Question 1

    Q1. Two resistors of 6 Ω and 3 Ω are connected in parallel. The equivalent resistance is:

    • A) 9 Ω
    • B) 2 Ω
    • C) 4.5 Ω
    • D) 18 Ω

    Answer: 2 Ω

    Explanation: For resistors in parallel, the reciprocal of the equivalent resistance equals the sum of the reciprocals: 1/R = 1/6 + 1/3 = 1/6 + 2/6 = 3/6 = 1/2, so R = 2 Ω. In a parallel circuit, the equivalent resistance is always less than the smallest individual resistance.