Question

LUITI
U
Q.4- Match the items in column I with those in column II
Column I
Column II
a) T.V. remote control
Electric bell
b) Bulb
Electric cell
c) Fluorescent tubes
Filament
d) Electromagnet
Mercury vapour​

Answer 1

Answer:

1. TV remote control - electric cell

2. bulb - filament

3. fluorescent tubes - Mercury vapour

4. electromagnet - electric bell

Answer 2

The two columns are matched as follows ':'

a) TV remote control -- Electric cell

b)Bulb-- Filament

c) Florescent tubes -- Mercury vapor

d) Electromagnet -- Electric bulb

• Electric cells are used in Tv remote. Electric cells have lithium providing about 3v power.

It gives an electrical current to run a device.

• Generally, filaments are made up of tungsten it protects the electrical wire from burning.

So filaments are used in bulbs.

• Fluorescent tubes have mercury vapors in small amounts. It is used for lighting.

• Electric bulbs emitting electromagnetic radiations.