Question

why does a bulb glow when we on the switch​

Answer 1

the bulb blow when we on the switch bcz the current strt passing through the circuit

Answer 2

Answer:

Explanation:

The filament of the bulb is made up of a metal known as tungsten which have a high resistance to the current

Due to its high resistance a large amount of energy is lost as heat to the surroundings. Also the melting point of tungsten is very high so it will only glow because of the heat energy produced in the metal but it will not melt since it melting point is very high

Hope it helps