1.

List two characteristics of the material used in a fuse wire.Name the material it is made of . A fuse is alwaysconnected in series in an electric circuit. Justifythis statement giving reason.

Answer»

Solution :The material used in the fuse wire should have a low meltingpoint and a low resistance. Generally, the fuse wire is thin, made of copper, aluminium, iron, ETC., all tin-PLATED or lead- plated. If a fuse is connected in series, the fuse wiremelts when a high current FLOWS and the CIRCUIT is broken. If it is connected in parallel, even if the fuse melts, current flows the remainingpart of the circuit . Thus, a fuse is always connected in series.


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