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Most ovens do involve electromagnetic energy. Microwave ovens are the best example because they work by deliberate creation of radio-type
radiation similar to the radiation from a radar antenna or dish. It is in the VHF (very high frequency) wavelength ( about 50cm). Microwave radiation excites the water molecules in the food in the oven. Ony food which contains water will be heated.
An electric oven has red-hot
elements which heat things in two ways. The air near the hot elements is heated by conduction and the the hot air then moves to the items to be cooked and passes the heat on to them also by conduction. The other way is by electromagnetic radiation, but not by VHF radio-like
waves. The heat radiation from hot elements is electromagnetic, but the wavelength is much shorter. It is just a little longer than visible red light's wavelength which less than one millionth of a millimetre. It is called infra-red
radiation. This heat heats the food in the oven in just the same way as the sun warms your skin when you stand in direct sunlight.
What else can I help you with?
Why electromagnet is different from a permanent magnet because an electromagnet what?
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
What kind of energy does a gas oven have?
A gas oven primarily uses thermal energy generated from the combustion of natural gas or propane. When the gas is ignited, it produces flames that heat the oven's interior, cooking food through convection and conduction. This process converts chemical energy stored in the gas into heat energy, allowing for efficient cooking.
Which change occurs in an electric motor?
Electrical energy is used to create a electromagnet with alternating poles. These alternating poles will cause another magnet with constant poles attached to an armature to turn and create mechanical energy.
How can electricity be made to do work?
None that I know of. Something like a loudspeaker uses electromagnets (the speaker coil) and permanent magnets (the magnet in the speaker frame) but the electromagnetic field and the permanent magnetic field repel each other and the electromagnet moves. A motor also uses EM-PM repulsion. It's a lot easier to find devices that use electromagnetism to move pieces of iron or steel.
Which kind of oven operates on short electromagnetic waves?
Microwave oven
What electromagnet has the highest energy?
the energy of the sun
What type of energy is electricity converted to in an electromagnet?
Electricity is converted into magnetic energy in an electromagnet. When an electric current flows through the wire coil of an electromagnet, it creates a magnetic field around the coil, resulting in the generation of magnetic energy.
What is the source of energy is the electromagnet?
oil
What energy transformations occur in a electromagnet?
Electrical energy is converted into magnetic energy in an electromagnet. When current flows through the coil of wire in the electromagnet, a magnetic field is created. This magnetic field can then exert a force on nearby magnetic materials.
What energy transformation takes place when using an electromagnet?
Electrical energy is converted into magnetic energy when using an electromagnet. When an electric current flows through the wire wrapped around the core of the electromagnet, it creates a magnetic field around the core, turning electrical energy into magnetic energy.
What renewable energy is generated from electromagnet waves?
Solar energy.
How do you create electromagnetic energy?
a ___________________ is he energy source when creating an electromagnet
What device uses an electromagnet to change electrical energy to kinetic energy?
An electric motor uses an electromagnet to convert electrical energy into kinetic energy. The electromagnet creates a magnetic field that interacts with a permanent magnet, causing the motor to spin and generate mechanical motion.
What does an electric motor use an electromagnet to do?
An electric motor uses an electromagnet to convert electrical energy into mechanical energy. The electromagnet generates a magnetic field that interacts with other magnetic fields to produce motion, causing the motor to run.
What kind of energy transformation takes place in electromagnet?
Electrical energy is transformed into magnetic energy in an electromagnet. When an electric current flows through the coil of wire, a magnetic field is created, allowing the electromagnet to attract or repel other magnetic objects.
What kind of energy does an electromagnet use?
electromagnetism
What does the energy of an electromagnet wave depend on?
Frequency
