Is a toaster convection or conduction?

Answer 1

Toasters have aluminum on the outside and heating bulbs on the inside. The heating bulbs heat up inside the body and warm the bread at high temperatures. The bread then becomes crisp and springs up out of the toaster.

Answer 2

A toaster is a resistance device. The element that you can see glowing red is the actual resistance ribbon. It is made to have so many ohms per foot resistance. This resistance ribbon is wound around usually mica sheets to keep it from touching any other part of the ribbon. Lets say that your toaster is rated at 1200 watts. Watts = Amps x Volts. 1200 = 10 x 120. The formula for resistance is R = Volts/Amps. R = 120/10 = 12 ohms. As you can see the toaster has 12 ohms of resistance ribbon in it with 10 amps of current flowing through it. Other resistive devices are light bulbs, baseboard heaters, eve trough heating cables.

Answer 3

A toaster usually takes in electrical energy.

Two types of energy are created.

In the first step, all of the input electrical energy is transformed into heat energy. That heat goes first into the coils or heating elements.

The heating elements get hot and glow.

The hot elements then transfer thermal energy (heat energy) into the air inside the toaster.

Because the heating elements are glowing, they are also giving off light. Light has electromagnetic energy. It travels through the air until is strikes the walls or any object inside the toaster at which point it is largely absorbed and the absorption transforms the light energy into heat. (There is also light that you can not see in the infrared part of the spectrum that is important in the heating process.) (Also, to get a little technical, some of the light may escape the toaster and that energy does not contribute to the toaster's heating function. Also, light reflected off of a surface inside the toaster will ultimately strike another surface and eventually get absorbed.)

As a final note, for the toasting effect where the outer part of an object gets raised to a high temperature, the radiative transfer of heat as infrared or visible light is actually a small but important contributor to the process.

Answer 4

When you turn on a toaster, the electricity passes over several magnetic coils. Those coils heat up and pass on the heat through conduction and radiation to the bread.

Answer 5

Electricity goes through a very high resistive piece of metal or wire and creates heat. Same as a light bulb works but much more resistive.

Answer 6

wires in a toaster give off heat and light. what is responsible for these changes?

Answer 7

A toaster is a home appliance, which accomplishes its job

mainly by radiation, plus maybe a tiny bit of conduction.

Answer 8

It is radiation.

Answer 9

Convection