Physics
Name the material used for (i) filament of an electric bulb and (ii) heating element of a room heater.
Answer
(i) The material used for the filament of an electric bulb is a tungsten wire because it has a high melting point.
(ii) The material used for the heating element of a room heater is nichrome because the specific resistance of nichrome is high and it's resistance increases to a great extent with the increase in temperature.
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