engineering physics MCQ #977

The current in a circuit with a battery of emf 10 V and internal resistance 1 ohm is 2 A. The potential difference across the terminals of the battery is?

engineering physics MCQ #977

  1. Question 1

    Q1. The current in a circuit with a battery of emf 10 V and internal resistance 1 ohm is 2 A. The potential difference across the terminals of the battery is?

    • A) 10 V
    • B) 8 V
    • C) 12 V
    • D) 6 V

    Answer: 8 V

    Explanation: V = E - Ir = 10 - 2 * 1 = 8 V.