engineering physics MCQ #987

The power dissipated in a resistor is 50 W when the voltage across it is 10 V. The resistance of the resistor is?

engineering physics MCQ #987

  1. Question 1

    Q1. The power dissipated in a resistor is 50 W when the voltage across it is 10 V. The resistance of the resistor is?

    • A) 1 ohm
    • B) 2 ohm
    • C) 4 ohm
    • D) 8 ohm

    Answer: 2 ohm

    Explanation: P = V² / R, so R = V² / P = 100 / 50 = 2 ohm.