Electrical fuse is required in all the electrical appliances. Why??
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The electric fuse is a metal alloy of low melting point. When the resistance of the conductors increase or voltage is high or when high current is flowing , then temperature of the circuit rises , this rise in temperature increases the temperature of fuse metal also . Due to more heat the fuse melts and breaks the circuit and current stops flowing and the circuit is protected from damage. Therefore fuse is required in all electrical appliances.
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Answer:
The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a peice of wire that melts easily. If a current going through the fuse is too great, the wire heats up until it melts and breaks the circuit. An electric fuse protects the electric appliances from damage.
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