MDCAT Physics MCQ #144

A device is connected to a power source, and its voltage is measured to be 20 V. If the current is 1 A, what is the resistance of the device?

MDCAT Physics MCQ #144

  1. Question 1

    Q1. A device is connected to a power source, and its voltage is measured to be 20 V. If the current is 1 A, what is the resistance of the device?

    • A) 5 Ω
    • B) 10 Ω
    • C) 20 Ω
    • D) 50 Ω

    Answer: 10 Ω

    Explanation: The resistance is given by R = V / I = 20 V / 1 A = 10 Ω.