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Draw an appropriate schematic diagram sh...

Draw an appropriate schematic diagram showing common domestic circuits and discuss the importance of fuse. Why is it that a burnt out fuse should be replaced by another fuse of identical ratting?

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Important of fuse :
(i) Fuse is an important safety device in household wiring and in electrical appliance.
(ii) Fuse prevents any damage to the circuit and appliance which may happen due to overload.
(iii) Fuse prevents accidental fire which may happen because of short circuit.
Fuse of a particular rating is used with a particular appliance. A fuse with lower rating would result in lot of inconveniences because of frequent need of changing the fuse. A fuse with higher rating would not serve the purpose because it will not melt even if the current exceeds the limit of the device. Hence, a burnt-out fuse should be replaced by another fuse of identical rating.
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