MDCAT Physics MCQ #451

A circuit has a resistance of 10 ohms and a current of 2 A. What is the voltage across it?

MDCAT Physics MCQ #451

  1. Question 1

    Q1. A circuit has a resistance of 10 ohms and a current of 2 A. What is the voltage across it?

    • A) 5 V
    • B) 10 V
    • C) 20 V
    • D) 40 V

    Answer: 20 V

    Explanation: Using Ohm's Law, V = IR = 2 * 10 = 20 V. Option A is incorrect because it misapplies Ohm's Law.