MDCAT Physics MCQ #484

What is the primary function of a fuse in an electrical circuit?

MDCAT Physics MCQ #484

  1. Question 1

    Q1. What is the primary function of a fuse in an electrical circuit?

    • A) To regulate voltage
    • B) To protect against short circuits
    • C) To increase circuit resistance
    • D) To store electrical energy

    Answer: To protect against short circuits

    Explanation: Fuses melt and break the circuit during excessive current flow, protecting against short circuits. Option A is incorrect as fuses don't regulate voltage.