Which material is used as filament of bulb ?

Incandescent lamp, discharge lamp , C.F.L, LED lamp, arc lamp are given for observation . Answer the following questions after observing them. Which metal is used to make filament of an incandescent lamp ? What are the advantages of using this metal as a filament ?

In incandescent lamp nichrome is not used as filament . Choose the reason from the following

Nichrome is not used as filament in incandascent lamp . Why ?

Observe the diagram . Nichrome is not used as filament in incandescent lamps . Why ?

Write down the reasons for the following statements . Nichrome is not used as filament in incandescent lamp.

Which of the following material is used to make wire wound standard resistors?

Observe the diagram . The filament of which bulb has more resistance ?