The diagram below shows a dual control switch circuit connected to a bulb.
(i) Copy the diagram and complete it so that the bulb is switched ON.
(ii) Out of A and B which one is the live wire and which one is the neutral wire ?
What is the purpose of a switch in a circuit? Why is the switch put in the live wire? What
precaution do you take while handling a switch?
Draw a circuit diagram using the dual control switches to light a staircase electric light and explain its working.
The diagram in Fig. 9.29 shows three lamps and three switches 1, 2 and 3
(a) Name the switch / switches to be closed so as to light all the three lamps.
(b) How are the lamps connected: in series or in parallel?