everyday science MCQ #50170

In a simple battery-bulb circuit one wire breaks. Why does the bulb go out?

everyday science MCQ #50170

  1. Question 1

    Q1. In a simple battery-bulb circuit one wire breaks. Why does the bulb go out?

    • A) Voltage doubles everywhere
    • B) Current path is interrupted so charge flow stops
    • C) Resistance becomes zero instantly
    • D) The filament suddenly gains mass

    Answer: Current path is interrupted so charge flow stops

    Explanation: In a simple series circuit, all components share a single unbroken conducting path; if that path is broken at any point — such as by a broken wire — the circuit is open and current ceases to flow everywhere, extinguishing the bulb. This is the fundamental limitation of series wiring.