Electrical fires are typically caused by poor wiring, faulty contacts, overloaded circuits or short circuits. Although newer homes have circuit breakers in place to shut down overloaded circuits, they can fail to activate before a fire starts. Therefore, it's important to be safe when installing and designing electrical circuits.Continue Reading
When electricity travels through wire, it creates heat via friction from electrons traveling along the wire. Wire that is designed to carry higher amounts of current is thicker for this reason; it can accommodate more electrons. If there is too much resistance in a wire, it can create enough heat to ignite surrounding material, such as the insulation.
Unsteady or loose electrical contacts pose a similar risk. If there is inadequate space for electrons to flow, they generate excess heat. This is why appliances should be completely plugged in and the wires inspected and tested regularly.
Overloaded circuits or outlets also can cause an electrical fire if failsafes are not present or don't activate in time. Each electrical circuit in a building is designed to carry a set amount of current. Exceeding this by turning on too many appliances at once can lead to overheating sufficient to start a fire before the electricity is shut off.Learn more about Electricity
The purpose of a capacitor is to store energy in the electric field between a pair of closely spaced conductors that are called plates, and these capacitors are used in electrical circuits as energy-storage devices. Capacitors can also be used to differentiate between signals of high frequency and low frequency, which makes them particularly useful in electronic filters.Full Answer >
A converging circuit is one of several neuronal circuits in the body, and it has a number of presynaptic neurons that stimulate one postsynaptic neuron. For example, a motor neuron receives information from many brain regions to perform a certain action.Full Answer >
Two common types of circuits are series and parallel. An electric circuit consists of a collection of wires connected with electric components in such an arrangement that allows the flow of current within them. A series circuit has no branches but instead has several components arranged one after the other.Full Answer >
Three-phase voltage refers to three voltages that vary by 120 electrical degrees or one third of a cycle from one another.These voltages apply to AC or alternating current circuits.Full Answer >