Question

(a) Mention the effect of electric current on which the working of an electrical fuse is based. 

(b) Draw a schematic labelled diagram of a domestic circuit which has a provision of a main fuse, meter, one light bulb and a socket. 

(c) Explain the term overloading of an electric circuit.

Answer 1

(a) Heating effect of electric current. 

(b) Domestic circuit wiring consists of a main fuse, meter, one light bulb and a socket.

(c) The flow of large amount of current through the circuit beyond its bearing capacity due to use of many high power rating devices at the same time is called overloading.