What is the working Principle of an electrical fuse?

Ohm’s Law

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Joule’s Law of Heating

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Coulomb’s Law

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Faraday’s Law

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Solution

The correct option is B
Joule’s Law of Heating

The fuse is placed in series with the device. It consists of a piece of wire made of a metal or an alloy of appropriate melting point, for example aluminium, copper, iron, lead etc. If a current larger than the specified value flows through the circuit, the temperature of the fuse wire increases. This melts the fuse wire and breaks the circuit.

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