What is an electric fuse ? How does it work ?

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It is the weakest part in an electric circuit which results in melting and hence breaks an electric circuit in use.

When some overloadin g or voltage fluctuations take place, the fuse wire melts. This in turn breaks the electric circuit and hense current stops flowing in the circiut.

Thus, in a way fuse helps in disconnecting an overloaded or faulty electric circuit and hense prevents an electric fire.

When some overloading or voltage fluctuations take place, the fuse wire melts. This in turn breaks the electric circuit and hense current stops flowing in the circiut.Thus, in a way fuse helps in disconnecting an overloaded or faulty electric circuit and hense prevents an electric fire.

Inelectronicsandelectrical engineering, afuse(from the Frenchfuser, Italianfuso, "spindle"^[1]) is a type of low resistanceresistorthat acts as asacrificial deviceto provideovercurrentprotection, of either the load or source circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, interrupting thecircuitthat it connects.Short circuits, overloading, mismatched loads, or device failure are the prime reasons for excessive current. Fuses are an alternative tocircuit breakers.

If we switch on all electrical appliances at the same time, they start drawing huge amounts of currents through the source of wire. Therefore, the wire gets heated which may lead to fire. Fire may also be caused when positive or negative terminals of a circuit come in direct contact. Such situations can be very dangerous because they can damage the entire house or the entire building. To prevent such damages a safety device known as electric fuse is inserted in the circuit.

In simple words we can say that a fuse is a safety device used for breaking the circuit during overloading of current.

An electric fuse consists of a wire made up of an alloy of tin and lead with a very low melting point. When current passing through the wire exceeds the maximum limit, it gets heated up and due to its low melting point, it melts and quickly breaks disconnecting the circuit. This prevents damage to appliances or the building.

If we switch on all electrical appliances at the same time, they start drawing huge amounts of currents through the source of wire. Therefore, the wire gets heated which may lead to fire. Fire may also be caused when positive or negative terminals of a circuit come in direct contact. Such situations can be very dangerous because they can damage the entire house or the entire building. To prevent such damages a safety device known as electric fuse is inserted in the circuit.

In simple words we can say that a fuse is a safety device used for breaking the circuit during overloading of current.

An electric fuse consists of a wire made up of an alloy of tin and lead with a very low melting point. When current passing through the wire exceeds the maximum limit, it gets heated up and due to its low melting point, it melts and quickly breaks disconnecting the circuit. This prevents damage to appliances or the building.

A fuse is a safety device to prevent excess current flowing in an electric circuit. It consists of a thin metal wire of low resistance and low melting point. When an electrical appliance or some other piece of electrical equipment becomes faulty, therefore allowing an excess electric current to flow through its circuit, this causes the wire inside the fuse to melt and thus break the flow of current.

Fuses, by design are a one-time-use protective device - once they are used ("burn out"), they're worthless. That is why homes typically use circuit breakers: a breaker acts similarly to a fuse in that it opens a circuit when excessive current flows, but - because nothing actually melts inside it - it can then be reset without having to be replaced by a new one, as has to be done for a fuse.

If there were no fuse in the circuit, serious damage could be caused to the wiring which feeds the equipment. It could get so hot that it catches on fire, which might start a fire in the building or vehicle in which the electrical equipment is installed.

A fuse is a small conducting wire of low melting point which protects the household electrical system from getting damaged due to unusual high current.

The unusual high current may be due to short circuit, power fluctuation in the electric line etc.The fuse wire is made of conducting alloy of very low melting point. It is rated according to the desired current required by an appliance. If the current is more than the rated value, the fuse wire heats up and melts to stop the flow of current.

A FUSE IS A SAFETY DEVICE WHICH PREVENTS EXCESSIVE CURRENT FROM FLOWING INTO THE CIRCUIT.

IT WORKS LIKE IF SUPPOSE MORE CURRENT HAS FLOWN FROM THE CELL IT PREVENTS IF IT DOES NOT THE BULB MAY BLOW UP ANDSOMETIMES MAY EVEN LEAD TO FIRE

In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby interrupting the current. It is a sacrificial device; once a fuse has operated it is an open circuit, and it must be replaced or rewired, depending on type.

Fuses have been used as essential safety devices from the early days of electrical engineering. Today there are thousands of different fuse designs which have specific current and voltage ratings, breaking capacity and response times, depending on the application. The time and current operating characteristics of fuses are chosen to provide adequate protection without needless interruption. Wiring regulations usually define a maximum fuse current rating for particular circuits. Short circuits, overloading, mismatched loads, or device failure are the prime reasons for fuse operation.

A fuse is an automatic means of removing power from a faulty system; often abbreviated to ADS (Automatic Disconnection of Supply). Circuit breakers can be used as an alternative design solution to fuses, but have significantly different characteristics.