Questions

Materials that usually allow electricity to pass through them are called Good conductors of electricity.

Conductors conduct electrical current very easily because of their free electrons.

Examples are :: Aluminium, Gold, Copper, Silver

Materials that do not allow or oppose electrical current & make poor conductors are called Insulators.

Examples are :: Glass, Plastic, Wood, Air,...

The watt-hour (WH) is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time.

1 WH = 3600 joules.

All India Radio founded in 1930.

With over 420 radio stations in about 23 languages & 179 dialects.

AIR is one of the largest radio broadcasters in world.

It also has 99.19% population coverage & 18 FM channels.