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?

Give reasons for the following: The burnt out fuse should be replaced by another fuse of identical rating.

In the circuit diagram shown in figure,a fuse bulb can cause all other bulbs to go out. Identify the bulb

What is the role of fuse, used in series with any electrical appliance? Why should a fuse with defined rating not be replaced by one with a larger rating?

(a) Which is the better way to connect lights and other electrical appliances in domestic wiring: series circuits or parallel circuits? Why? (b) Christmas tree lamps are usually wired in series. What happens if one lamp breaks? (c) An electrician has wired a house in such a way that if a lamp gets fused in one room of the house, all the lamps in other rooms of the house stop working. What is the defect in the wiring? (d) Draw a circuit diagram showing two electric lamps connected in parallel together with a cell and a switch that works both lamps. Mark an A on your diagram to show where an ammeter should be placed to measure the current.