everyday science MCQ #50023

A fuse in an electric circuit is designed to:

everyday science MCQ #50023

  1. Question 1

    Q1. A fuse in an electric circuit is designed to:

    • A) Increase current when voltage drops
    • B) Store excess electrical energy
    • C) Melt and break the circuit when current exceeds safe limits
    • D) Convert AC to DC

    Answer: Melt and break the circuit when current exceeds safe limits

    Explanation: A fuse is a safety device containing a thin wire that melts and breaks the circuit when the current exceeds a safe threshold, preventing damage to appliances and wiring from overloads or short circuits. Once blown, a fuse must be replaced, unlike a circuit breaker which can be reset.