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what is the difference between switch and fuse

fuses are devices used to protect electrical appliances from damage when excess electricity passes through it.
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switch is a device for making and breaking the connection in an electric circuit.
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A switch is a device that opens or closes a circuit manually but fuse is a safety device with a low melting point metal which opens a circuit to prevent overload or short circuit.
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A Switch helps to open and close a circuit.  And the fuse prevents short circuit  By breaking the path of current when there is any overloading
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