0
An incandescent bulb in an AC circuit does give off both heat and sound energy; the heat because the filament is hot, and the sound because the varying voltage results makes the filament vibrate. Generally it's not a very LOUD sound, but bulbs which are about to burn out often emit a noticeable buzzing.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoA light bulb does not generate energy, it converts energy from one form to another. Specifically it converts electrical energy to heat and light (electromagnetic energy) and some magnetic energy.
Add your answer:
Earn +20 pts
Does a high watt bulb give more energy than a low watt bulb?
More watts means it uses more energy per second (watt is a unit of power). If it is a light-bulb of the same type of technology, the higher-watt light bulb would also give off more light.
Do chemical reactions give out energy in the form of heat light or sound?
all 3
Fireworks give off what energy?
They change into chemical to thermal!
Which bulb lasts longer an incandescent light bulb or a compact fluorescent light bulb?
A regular incandescent bulb uses a lot more energy than a compact fluorescent to produce the same amount of light. Most energy used by an incandescent bulb is wasted as heat which does not give off visible light. Incandescent bulbs are cheaper to buy, but they have shorter lifetimes than other alternatives.
How efficient is a filament light bulb?
about 10% the filament light bulbs give off about 90% heat and 10% light
Does a light bulb give off radiant or thermal energy?
THe light bulb emits light while in the process heat in the infrared spectrum is emitted.
What type of energy does a light bulb give off?
It makes thermal energy (the heat), radiant energy (what we see), which is in essence more or less the same manifestation.
Can energy saving light bulb charge a phone?
No. An energy saving light bulb is just a light bulb, and can't charge anything. The reason it's called an "energy saving" device is that it can give you the same amount of light while using less electrical energy than older bulbs used.
What uses light energy to make electricity?
to give load from bulb to ballas
How does give give out heat?
All energy converters will give out heat. Tv's will get energy from their source and convert it to sound, light and heat energy.
Does a high watt bulb give more energy than a low watt bulb?
More watts means it uses more energy per second (watt is a unit of power). If it is a light-bulb of the same type of technology, the higher-watt light bulb would also give off more light.
Why does a non energy saving light bulb give off more heat than an energy saving light bulb?
Any of the wasted energy that is not converted to light will be converted to heat.Any of the wasted energy that is not converted to light will be converted to heat.Any of the wasted energy that is not converted to light will be converted to heat.Any of the wasted energy that is not converted to light will be converted to heat.
How does television set give out heat?
All energy converters will give out heat. Tv's will get energy from their source and convert it to sound, light and heat energy.
What is the job of the cells and wires and bulb and switch in a torch?
The job of a bulb is to give off heat and light energy
What energy does burning coal give?
Burning coal gives heat (thermal), light and sound energy.
Why does energy saver give more light than electric bulb of same watt?
Both bulbs output the same amount of energy. The difference is in how much of that energy is output as heat vs the energy output as light. In a standard incandescent light bulb about 10% of the energy is output as light while the other 90% is output as heat. This makes the bulb only 10% efficient. For a florescent bulb the output of light is about 50% and the other 50% is output in heat. This means that a fluorescent bulb outputs five times as much light for the same wattage as a standard incandescent bulb, hence you can get the equivalent of 100 watts of light output for only 20 watts of electricity.
Do chemical reactions give out energy in the form of heat light or sound?
all 3
