Q:

What causes a short circuit?

A:

Quick Answer

A short circuit is caused when two or more uninsulated wires come into contact with each other, which interferes with the electrical path of a circuit. The interference destabilizes normal functioning of electricity flow. The resistance generates a lot of heat in the wires and can lead to a fire.

Know More
What causes a short circuit?
Credit: Lennart Tange CC-BY-2.0

Full Answer

A short circuit exists when positive and negative terminals of a current connect on a low-resistance conductor. This contact causes more electrical energy to be produced within a short time. Since a short circuit can lead to unintentional fires, electrical devices are installed with fuses or circuit breakers to prevent the surge of destructive electrical energy.

Learn more about Electricity

Related Questions

  • Q:

    What is a common wire in an electrical circuit?

    A:

    A common wire is either a connecting wire or a type of neutral wiring, depending on the electrical circuit. When it works as a connecting wire, the wire connects at least two wires of a circuit together.

    Full Answer >
    Filed Under:
  • Q:

    What causes fluctuation in line voltage?

    A:

    Fluctuation in line voltage can be caused by loose or corroded lines in either the house or the power lines, according to Northpower. It is also caused by insufficient wiring installation and even lightning strikes on or in the vicinity of power lines.

    Full Answer >
    Filed Under:
  • Q:

    How does a switch work on a circuit?

    A:

    A switch works by interrupting current flow around an electrical circuit. A basic switch is a binary device: it is either open (off) or closed (on). The simplest type of switch is one that comprises two metal strips that are brought into contact by a spring or some other form of actuating mechanism.

    Full Answer >
    Filed Under:
  • Q:

    How does electricity travel through a circuit?

    A:

    Electricity moves through a circuit according to the polarity, or charge, of the power source and the various loads in the circuit. The power source of a circuit has positively charged and negatively charged terminals. Electricity is the flow of electrons, which have a negative charge.

    Full Answer >
    Filed Under:

Explore