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In a circuit what does an fuse do?

Updated: 8/11/2023
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9y ago

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A fuse is used in a circuit to protect the other elements in a circuit. Fuses are rated at different currents and voltages. When the rated current is exceeded the fuse will blow. For that reason fuses are placed in circuits to protect other more expensive items. For example you find fuses in your home. If there was a sudden surge in current coming into your house the fuse will blow and power will be cut to the circuit it is attached to. If that fuse wasn't there the other elements in that circuit would be exposed to the current surge. This would cause damage to that object and if it is something like a computer or tv etc they are not that cheap to replace. So ultimately a fuse is put in place to make sure that other equipment isn't damaged by current surges etc
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Q: In a circuit what does an fuse do?
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