MDCAT Physics MCQ #472

A battery of emf 6V and internal resistance 2 ohms is connected to a 4 ohm resistor. What is the terminal voltage?

MDCAT Physics MCQ #472

  1. Question 1

    Q1. A battery of emf 6V and internal resistance 2 ohms is connected to a 4 ohm resistor. What is the terminal voltage?

    • A) 4 V
    • B) 5 V
    • C) 6 V
    • D) 8 V

    Answer: 4 V

    Explanation: I = E/(R + r) = 6/(4 + 2) = 1 A, V = IR = 1*4 = 4 V.