MDCAT Physics MCQ #593

A cell with an emf of 12 V and an internal resistance of 1 Ω is connected to a 20 Ω external resistor. What is the terminal voltage?

MDCAT Physics MCQ #593

  1. Question 1

    Q1. A cell with an emf of 12 V and an internal resistance of 1 Ω is connected to a 20 Ω external resistor. What is the terminal voltage?

    • A) 10.4 V
    • B) 11.0 V
    • C) 11.6 V
    • D) 12.0 V

    Answer: 11.0 V

    Explanation: Using the formula Vt = Vemf - Ir, where Ir = Vemf/Rt, we find the terminal voltage. The other options are incorrect due to incorrect calculations or assumptions.