Question

name the material 1. filament of a bulb2.heating element of a room heater

Answer 1

Tungsten .... Filament of bulb
Nichrome..... Heating element in heater

Answer 2

hye

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1. filament of a bulb

ans - tungsten

tngsten is the material used in  filament of a bulb . it is used because

1. a high melting point
2.doesnt burnt out
3.becomes white hot when current flows through it.

2.heating element of a room heater

ans - nichrome

nicrohme  is used as heating element of a room heater

it has  a high restivity and becomes red hot when current flows through it 

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hope it helps u