Physics
Figure below shows two bulbs with switches and fuse connected to the mains through a three pin socket by means of a three wires cable.
(a) Label each component — bulb, switch, fuse and socket.
(b) Name and state the colour of insulation of each wire 1, 2 and 3.
(c) How are the two bulbs joined : in series or in parallel.
Household Circuits
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Answer
(a) Labelled diagram is shown below:
(b) The name and colour of wires are as follows:
- 1 → neutral, blue colour.
- 2 → earth, green colour.
- 3 → live, brown colour.
(c) The two bulbs are joined in parallel.
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