Explain why, a copper wire cannot be used as a fuse wire.

Fill in the following blanks with suitable words:

(a) A fuse should always be placed in the .............wire of a mains circuit.

(b) The earth wire should be connected to the..............of an appliance.

Of what substance is the fuse wire made? Why?

What type of electric fuse is used in electrical appliances like car stereos? Explain with the help of a labelled diagram.

Distinguish between the terms 'overloading' and 'short-circuiting ' as used in domestic circuits.