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Question
What happens in the fuse which melts it to break the electrical circuit?
What happens in the fuse which melts it to break the electrical circuit?
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Solution
The correct option is B Joule 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.
Joule 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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