A fuse is an essential device used in various electrical circuits which gives the protection from the over-current. It comprises a strip or a metal wire that dissolves when the heavy flow of current supplies through it.
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The working principle of a fuse is based on the “Heating effect of Current” i.e. Whenever a short circuit, over current or mismatched load connection occurs, then the thin wire inside the fuse melts because of the heat generated by the heavy current flowing through it. Therefore, it disconnects the power supply from the connected system. In normal operation of the circuit, fuse wire is just a very low resistance component and does not affect the normal operation of the system connected to the power supply.
Types of Fuses
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