Which is the component that makes an electric circuit open in case of an excess current?

Fuse wire

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Small iron rod

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Battery

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Switch

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Solution

The correct option is A
Fuse wire

Fuse wire is made up of a material which has a low melting point and it breaks/burn off when a high electric current passes through it, thereby saving electrical appliances from further damage. A fuse is nothing more than a short length of wire designed to melt and separate in the event of excessive current.

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Which is the component that breaks the electric circuit in case of excess current?

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