v)
Why tungsten metal is used to make a solenoid type coil in an electric bulb.
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3
Answer:
Tungsten is used in electric bulb because Tungsten has a higher resistance and also . have a very high melting point . So , it doesn't melt easily even if we paas high voltage current . the very thin filament of bulb is made up of this metal .
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0
Answer:
i) The intensity of light emitted by the filament of a bulb depends on the temperature
of the filament.
ii) Intensity of light is increase either temperature.
iii) The melting point of material used to the filament of a bulb should be very high.
iv) The filament can be heated to a high temperature by passing a current through it,
without melting it.
v) The melting point of tungsten is very high.
Therefore tungestion is used to make solenoid.
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