Q15 of 238 Page 113

Give two reasons why different electrical appliances in a domestic circuit are connected in parallel.

The two reasons why different electrical appliances in a domestic circuit are connected in parallel are:-

1) Because of the parallel connection it is possible to use one application while the other is switched off.

2) Voltage remains same throughout in case of parallel connection.

What is the usual colour of the insulation of:

(a) live wire,

(b) neutral wire, and

What is the main purpose of earthing an electrical appliance?

How should the electric lamps in a building be connected so that the switching on or off in a room has no effect on other lamps in the same building?

Fill in the following blanks with suitable words:

(a) A fuse should always be placed in the .............wire of a mains circuit.

(b) The earth wire should be connected to the..............of an appliance.