MDCAT Physics MCQ #586

A 20V battery has an internal resistance of 5 ohms. What is the current when a 10 ohm load resistor is connected?

MDCAT Physics MCQ #586

  1. Question 1

    Q1. A 20V battery has an internal resistance of 5 ohms. What is the current when a 10 ohm load resistor is connected?

    • A) 1A
    • B) 2A
    • C) 3A
    • D) 4A

    Answer: 4A

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