a fuse is a wire that prevents damage due to sudden heavy currents ,which may arise due to some defect in the house wiring or in the appliances.
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AS FUSE WIRE HAS GREATER RESISTANCE SO IT MELTS WHENEVER THERE THE EXTRA CURRENT IN THE ELECTRIC CIRCUIT OF HOUSE
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AS FUSE WIRE HAS GREATER RESISTANCE SO IT MELTS WHENEVER THERE THE EXTRA CURRENT IN THE ELECTRIC CIRCUIT OF HOUSE?
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The problem with fuse is that whenever overloading occurs it melts and so has to be replaced to complete the circuit.
So it is recommended to used MCB nowadays instead of fuse.
Hope it helps !!
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A fuse is an electrical safety device (a component) that removes electrical current from an electrical circuit when the current in the electrical circuit is too high.
‘Electrical circuit’ means anything that uses electricity, for instance an iron, a kettle or a TV.
A fuse is a length of wire that melts (breaks or blows) when the current through it is above a certain level – the fuse rating. The 'fuse rating' is the electrical current that will blow the fuse, for instance 3 amps, 10 amps or 13 amps.
A fuse is a current sensitive piece of wire – when the fuse is working the wire is not broken, when the fuse has ‘blown’ the wire breaks.
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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.
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