Some Essential Components of House Wiring System

A switch must be connected in :

The rating of a fuse connected in the lighting circuit is :

Figure below shows two bulbs with switches and fuse connected to mains through a socket.
How are the two bulbs joined : in series or in parallel ?

Figure below shows two bulbs with switches and fuse connected to mains through a socket.
Name and state the colour of insulation of each wire $1,2$ and $3.$

Figure below shows two bulbs with switches and fuse connected to mains through a socket.
Label each component bulb, switch, fuse and socket.

The diagram in Figure shows three lamps and three switches $1,2$ and $3.$
Name the switch/switches to be closed so as to light all the three lamps.

The diagram in Figure shows three lamps and three switches $1,2$ and $3.$

How are the lamps connected : in series or in parallel?

Draw a circuit diagram using the dual control switches to light a staircase electric light and explain its working.

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?

'A fuse is rated $8 \mathrm{A}$'. Can it be used with an electrical appliance of rating $5 \mathrm{kW},200 \mathrm{V}$

Explain the meaning of the statement 'the current rating of a fuse is $5{ \mathrm{A}}^{\text{'}}$.

Complete the following sentences:

A fuse is connected in ______ with the ______ wire.

Complete the following sentences:

A fuse is a short piece of wire of high _________ and of material of low _________

Why is the fuse wire fitted in a porcelain casing ?

Describe with the aid of a diagram some form of a fuse which is used in the electric lighting circuit of a house. Give two reasons why a fuse must not be replaced by an ordinary copper wire.

Name the device used to protect the electric circuits from over loading and short circuit. On what effect of current does it work ?

What is a fuse ? Name the material of fuse. State one characteristic of material used for fuse.

The electric meter in a house records :

The electrical appliances in a house are connected in :

The main fuse is connected in :