state two reasons due to which excessive electric current can flow through the current explain how electric fuse work in that case
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Possible causes for overcurrent include short circuits, excessive load, incorrect design, an arc fault, or a ground fault. Fuses, circuit breakers, and current limiters are commonly used overcurrent protection (OCP) mechanisms to control the risks.
An electric fuse is based on the principle of heating effect of electric current. It is made up of thin metallic wire of non-combustible material. ... When an excessive current flows in the circuit, it generates heat in the circuit which leads to melt the fuse due to its low melting point, and it also opens the circuit.
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