Question

what effect of electric current is utilized in the working of the electric fuse ?

Answer 1

Voltage effect of current is utilized in the working of the electric fuse there are two thin (copper,alminum coil )that connects line resistance some point lots of current flow then wire break

Answer 2

First of all, there are two effects of current:

1. Heating effect
2. Magnetic effect

The fuse works at HEATING EFFECT of the current.

How it works: When a heavy current flows through the fuse, the fuse wire gets heated up and since its melting point is low, it melts, thus breaking the circuit and saving the appliance from being damaged.

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Note that copper wire is not used as a fuse wire because its melting point is high and resistivity is low (because it is a good conductor) nor is aluminium used.

An alloy of lead and tin is used. It is called solder.