engineering physics MCQ #979

The power dissipated in a resistor is 100 W when the current is 5 A. The resistance of the resistor is?

engineering physics MCQ #979

  1. Question 1

    Q1. The power dissipated in a resistor is 100 W when the current is 5 A. The resistance of the resistor is?

    • A) 4 ohm
    • B) 2 ohm
    • C) 1 ohm
    • D) 0.5 ohm

    Answer: 4 ohm

    Explanation: P = I²R, so R = P / I² = 100 / 25 = 4 ohm.