. Describe with the aid of a diagram some form of a fuse, which is used in the electric lighting circuit of a house


Describe with the aid of a diagram some form of a fuse, which is used in the electric lighting circuit of a house. Give two reasons why a fuse must not be replaced by an ordinary copper wire.

 

Best Answer

the electric lighting

The most common fuse arrangement is shown in the above figure. In this fuse arrangement the fuse wire is stretched between the two metallic terminals T1 and T2 in a porcelain holder (since porcelain is an insulator of electricity). This holder fits into a porcelain socket having two metallic terminals to each of which the live wire of the circuit is connected.

Copper has very low resistivity and high melting point. Thus fuse must not be replaced with a copper wire.

 

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