MDCAT Physics MCQ #141

A device is connected to a power source, and its current is measured to be 2 A. If the resistance is 5 Ω, what is the voltage across the device?

MDCAT Physics MCQ #141

  1. Question 1

    Q1. A device is connected to a power source, and its current is measured to be 2 A. If the resistance is 5 Ω, what is the voltage across the device?

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

    Answer: 20 V

    Explanation: The voltage is given by V = IR = 2 A * 5 Ω = 20 V.