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There is a lot of confusion on all matters relating to heat.
The efficiency of a device is usually the fraction of consumed energy which goes into the function of the device. For an engine, this is straight-forward. For a light bulb or a toaster, not so.
For light emitting devices, in the wintertime when you are heating your house anyway, the answer is 100%. None of the energy is wasted; it just replaces some use of your electric heater. But what if you have a gas heater? Then the efficiency is relative.
In the summertime, this is a much more important question. For a light bulb, you would look at light output (in Lumens) per energy input (in Watts). For a toaster, the answer is *completely* relative, rather than a fraction.
The pertinent question is: How much energy does *this* toaster require to toast a piece of bread, compared to another toaster. I have not found much experimentation which answers that, even to compare toasters to toaster ovens. Toaster ovens may turn off during heating, so it's not simply a matter of maximum wattage.
In general, the closer the heating element is to the surface of the bread, the higher the 'efficiency' of the toaster. On thin bread, bagel toasters are thus somewhat less efficient than smaller toasters are. Cheap toaster ovens are sometimes accused of making bread 'soggy', which is a result of the bread being heated by the air rather than directly by radiation from the heating elements.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoThey use electrical power to heat the radiant element to toast the bread
Wiki User
∙ 10y agoIs the light energy from a toaster a wasteful byproduct
Wiki User
∙ 12y agoelectric to radiation
Wiki User
∙ 12y agoElectrical > Light + Heat.
Wiki User
∙ 10y agobad
Anonymous
IM NOT SURE
I ASKED BECAUSE IT WAS FOR MY SCIENCE HOMEWORK
Anonymous
the wasted energy for a toaster is the light of the heat inside the toaster
Anonymous
Determine the output of toaster machine
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What type of energy is traveling to the toaster?
electric energy is found in a toaster
What kind of energy does a toaster give off?
A toaster gives out heat energy.
What is an example of heat energy to mechanical energy?
toaster
How many types of energy does a toaster have?
A toaster has 3 types of energy: Electrical, Heat and Sound energy.
Is it always easy to collect wasted energy and use it?
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
What type of energy is traveling to the toaster?
electric energy is found in a toaster
In a toaster what kind of energy is used?
The inside of a toaster includes electrical energy (what runs the toaster), radiant/light energy (the light coming off of the coils), and thermal/heat energy (what cooks the food in the toaster).
A toaster changes electrical energy to?
A toaster changes electrical energy to heat.
What kind of energy does a toaster give off?
A toaster gives out heat energy.
What is an example of heat energy to mechanical energy?
toaster
How many types of energy does a toaster have?
A toaster has 3 types of energy: Electrical, Heat and Sound energy.
Is it always easy to collect wasted energy and use it?
Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.Once the energy is wasted, you can't convert it back to useful energy.
How is energy transferred from a toaster to toast?
Through the coils of the toaster
When you turn on the toaster on what happens to the electrical energy?
When you turn on a toaster, the electrical energy transforms into thermal energy to toast your bread. =]
What is heated by the thermal energy wasted by a food mixer?
kinetic energy is wasted
What is the energy inside the toaster?
Electric energy
What energy does a toaster produce?
heat energy
