0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why does a light bulb filament glow?
The filament inside is heated. Once it gets hot enough, it dissipates some of the energy as heat and light.
Does the size of the light bulb affect how much energy it uses with wire and a battery?
No, only the resistance of the filament counts (normally marked as "wattage" on the bulb).
What is the difference between a filament of a bulb and an element of an electric heater?
The heater element is thicker wire, and has lower resistance. It still has enough resistance to glow red hot (producing heat) but does not glow white-hot and very brightly like a light bulb filament. Also, it lasts almost indeifnitely. whereas the light bulb filament has a finite life - it will "burn out" sooner or later.
What happens when you break a glow stick?
You you break a glow stick it will be shorter in size and may not glow well.
Can you use a copper wire to make a filament of an electric bulb?
No, copper wire cannot be used to make the filament of an electric bulb as copper wire has very low resistance. Therefore, the bulb will not glow if current is passed. It would also melt - the filament has to be white-hot to be any use!
Why does the filament of a lightbulb glow while the connecting wires do not?
they glow
What type of light glow when the filament get hot?
incandescent lights
Is resistance in the filament of a lamp essential or not?
Yes, the resistance of the filament of a light bulb is what generates enough heat to make the filament glow and produce light.
Why does a fused bulb not glow?
A fused bulb does not glow because the filament of a fused bulb is broken. Since current can't flow through the filament, it can't get hot enough to glow.
How does the light in a resistor glow?
The light glows because of the hot Filament.
Why does a light bulb filament glow?
The filament inside is heated. Once it gets hot enough, it dissipates some of the energy as heat and light.
Will the bulb light if the filament is broken Why?
No, the broken filament breaks the connection which electricity needs to complete the circuit.
Property of the filament that makes it light up when electricity flows through it?
Incandescence. The filament is heated by the electricity moving through it, this causes the filament to heat up, and the heat causes the familiar glow.
Why is gas in a light bulb?
Mainly to prevent the filament, the glow wire from burning up.
Does the filament of an incandescent light bulb glow because it gets extremely hot?
yes
Is a light bulb a gas?
Mainly to prevent the filament, the glow wire from burning up.
How does a battery make a light bulb glow?
The flow of electrons from the battery flow through the filament in the bulb causing it to get hot and glow thus producing light.
