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Why is much less heat generated in long electric cables than in filaments of electric bulbs?
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The element used in light bulbs filaments?
Tungsten
Why do light bulbs use very fine filaments?
Incandescent light bulbs use tungsten( a metal which can withstand very high temperatures) as filament.When heated to a very high temperature, the filament glows emitting light and heat. Heating effect in filaments is caused by the property of resistance in conductors. On reducing the cross- section area( thickness) of the filament, its resistance is increased and hence the filament glows with comparitively lesser electric current.
Why is glass used to make electric bulbs?
Glass is used in light bulbs because it's clear (passes the light through), can withstand the heat generated by the filiment and does not leak air to the inside of the bulb. And, it's cheap and easily formed into the required shape(s)
How are xenon bulbs different from normal light bulbs?
Xenon bulbs are much brighter than regular light bulbs. They are more expensive that normal light bulbs. this is partly because of the cost of xenon gas, but also because of the heat generated by the bulb that requires them to be housed in quartz instead of glass.
What is a filament that glows white hot in electric light bulbs?
Tungsten :)
What element is found in filaments of electric bulbs?
Tungsten is the main one. There may be others.
What metal use the filaments in light bulbs?
Tungsten is used in filaments of light bulbs.
The element used in light bulbs filaments?
Tungsten
Why is a copper wire not used to make filaments of electric bulbs?
Because the filament is in effect a resistor. Copper is too good a conductor to provide resistance to the current, and would simply allow the current to complete the circuit. The light is generated by the filament glowing as it heats up in resistance to the current. Tungsten is a much better resistor.
What element makes up the filaments in light bulbs?
It is usually Tungsten.
Which element is used in the filaments of household light bulbs?
usually tungsten
How many filaments exist in a light bulb?
Most incandescent bulbs have one filament. Some halogen bulbs working on 240 v have two filaments in series, which must be to simplify manufacture of bulbs being made for 120 v and 240 v in the same factory.
Invented toilet system for railroad cars and electric lamppublished book that became guide for lighting engineers?
Lewis Howard Latimer invented a toilet system for railroad cars. He also invented an electric lamp using carbon filaments in light bulbs.
Element used in light bulb filament?
That depends on the bulb, and the time frame. The first bulbs had carbon filaments. Certain bulbs used in control devices have iridium filaments. Modern grocery store incandescent bulbs have tungsten filaments.Tungsten, because of its very high melting point.
What element is commonly found in filaments in incandescent light bulbs?
Tungsten, as it burns long and brightly.
What could cause the brake-lights on a 1990 Volvo to work with the headlights off but not to work when the headlights are turned on?
They are either the wrong bulbs or one of the filaments is burned out. The bulbs should have two filaments. One is illuminated when the lights are on. The other is brighter when the brakes are used.
Why do light bulbs use very fine filaments?
Incandescent light bulbs use tungsten( a metal which can withstand very high temperatures) as filament.When heated to a very high temperature, the filament glows emitting light and heat. Heating effect in filaments is caused by the property of resistance in conductors. On reducing the cross- section area( thickness) of the filament, its resistance is increased and hence the filament glows with comparitively lesser electric current.
