What happens in the fuse which melts it to break the electrical circuit?

Short circuit

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Joule's heating

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Overloading

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Decrease in voltage

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Solution

The correct option is B
Joule's heating

Fuse is a protective device used to disconnect the supply when the current flowing through it exceeds. It is a wire made up of a metal that has low melting point. High current heats and melts it, breaking the circuit.
Joule's heating is the phenomenon that takes place in the fuse which helps it to break the electrical circuit and hence prevents accidents.

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Similar questions

What takes place in the fuse which melts it to break the electric circuit?

The fuse wire melts when high electric current passes through the circuit due to its:

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