science
Grade6
Easy
Question
A torch contains a bulb as a lighting element. The bulb contains a ____ which glows up to emit light.
- Glass covering
- Reflector
- Filament
- Base
Hint:
Tungsten is used in bulbs mostly for lights ,now think which option is related to Tungsten.
The correct answer is: Filament
A filament lamp is a common type of light bulb. It contains a thin coil of wire called the filament. This heats up when an electric current passes through it, and produces light as a result. The resistance of a lamp increases as the temperature of its filament increases.
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