0
Electric current passes through a filament and heats up the filament which then emits light. The heat is a waste product in this case because all the work being done doesn't convert to the desired product, which is light. Light sources like LED or fluorescent can give out as much light with less heat and are therefore more efficient.
Wiki User
∙ 14y ago
Anonymous
radiation waves
Sevan Garrett
Mustafa Khurram
Jovanish Lungere
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.
What form of energy is heat produced by filament?
Heat energy. When it is radiated off from the filament, it is mainly infrared light.
Why do light bulbs glow?
Either the filament or a gas inside is heated. Once it gets hot enough, it dissipates some of the energy as heat and light.
What happens to the filament if the bulbs becomes brighter and brighter?
The bulb gets brighter because the filament is getting hotter. If the filament's temperature gets too high it will melt at some point and fall apart. The current will stop flowing and the bulb will "blow".
What happens to the energy when you turn on an electric lamp?
Electricity flows through the filament, resistance in the filament causes heat and light energy to be created.
How does a kettle filament heat all the water?
The filament or element gets hot and passes it's heat into the water.
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.
Why the filament in a bulb lights up?
because filaments are generally good conductors of heat , so the filament burns first and then gets heated up and then gives light.
What part of a light bulb gives off electricity?
The part of an incandescent light bulb that gets hot and produces the light is called the filament.
How does the heat make kernals pop?
Inside each kernel of pop corn is a minute amount of moisture (water), when the kernel gets really hot, the moisture tries to expand into steam and the tight skin of the kernel pops open, spreading the contents.
What form of energy is heat produced by filament?
Heat energy. When it is radiated off from the filament, it is mainly infrared light.
What do you heat to get a piece of popcorn?
kernel
Why do light bulbs glow?
Either the filament or a gas inside is heated. Once it gets hot enough, it dissipates some of the energy as heat and light.
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.
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.
What happens when a filament gets heated?
the bulb get fused
What is a filament Is it solved by using electricity terms?
A filament is part of a bulb.I will give you a full sentence. "The filament of a bulb is the part that gets hot and produces light"
