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What are fuses and circuit breakers What are they for?
A fuse is a device that contain a thin strip of metal that will melt if there is too much current through it.A circuit breaker is a reusable safety switch that breaks the circuit when the current gets too high.They are used to prevent circuits from overheating.
What is the difference between a fuse and circuit?
a fuse main purpose is to quickly disconnect a short circuit. when the current passing through it exceed its rated value
How can a fuse prevent short circuits?
If too many charges flow (aka, short circuit) through the thin, metal conductor inside of the fuse, it melts, thereby making the circuit open and protecting the components from the effects of the short circuit. In your situation, the moment the short is created, the metal heats up very quickly. Since this metal has a very low melting point, any sudden, unexpected heat generated will melt the fuse, thus preventing the short from truly forming for an substantial amount of time
Why is the fuse always on the 'live' side of the appliance?
If there was a fault to earth the casing of the appliance would remain live otherwise. Also there could be a large current from live to earth which could heat the wires to the extent that your house burns down. This is expensive! Neutral is near earth potential anyway. <<>> The fuse should be the first device in any circuit. When a fault occurs the potential across the circuit should become zero to ground. If the fuse was located on the downstream side of the load it would still open the circuit but every part of the circuit upstream from the load would still have a voltage potential to ground. Any one working on the circuit upstream from the load has the potential to receive a shock even though the fuse has opened the circuit. So to answer the question the placement of the fuse in a circuit is for safety reasons.
What size fuse?
It depends what the fuse is protecting. A fuse is a weak point in an electrical circuit that is designed to melt and disconnect the circuit before it is damaged or becomes dangerous (eg catches fire) Depending what is being protected a fuse could typically be between 1mA (0.001 amps) and several thousand amps. Bigger and smaller exist for special applications.
What is designed to open an overloaded circuit and prevent overheating?
A circuit breaker or a fuse.
In science to prevent overloading in a parallel circuit you could install a what?
you can use a fuse or circuit breaker
How can you prevent having an overloaded circuit?
The thing that prevents an overload is the fuse.
What component included in a circuit and is designed to prevent too much current from flowing through the circuit?
A fuse.
What is a component included in a circuit and designed to prevent too much current from flowing through the circuit?
A fuse.
What is a divice designed to open an overload circuit and prevent overheating?
A thermostat.
What is the device desighed to open an overload circuit and prevent overheating?
A fuse or breaker.
How does a fuse help safety?
A fuse is a safety device that helps prevent excess current flowing in an electric circuit.
What is used in an electrical circuit to prevent a short circuit?
difference between p type and n type semiconducter materialAnswerInsulation is used to prevent a short current. To protect the circuit should a short-circuit fault occur is either a fuse or a circuit breaker.
What is the use of a fuse in a circuit?
A fuse is designed to blow off safely without causing fire when an excess current passes through it. This to prevent damaging the circuit load and is also used for isolating the circuit to carry out some service.
What are the functions of an electric fuse in a an electric appliance?
To prevent an overload or short from causing the wiring in the circuit supplying power to the appliance from overheating and possibly catching on fire. The fuse is there to protect the wiring and not what is plugged into that circuit.
The first measure you should take to help prevent damage against electrical problems is to do what to the circuit?
Protect the circuit with an OCPD, an over current protection device, such as a circuit breaker or fuse.
