MDCAT Physics MCQ #582

A cell has an internal resistance of 1 ohm and a terminal potential difference of 5V. What is the current when a 2 ohm load resistor is connected?

MDCAT Physics MCQ #582

  1. Question 1

    Q1. A cell has an internal resistance of 1 ohm and a terminal potential difference of 5V. What is the current when a 2 ohm load resistor is connected?

    • A) 2A
    • B) 3A
    • C) 4A
    • D) 5A

    Answer: 5A

    Explanation: Net resistance (R_net) = Internal resistance (r) + Load resistance (R). Then, I = V/R_net