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A cavity magnetron vacuum tube has a magnetic field bend the path of electrons from the cathode to the plate into a very tight spiral. This produces an "electron wind" blowing across the inside surface of the cylindrical anode. This anode has many cavities machined into it that act much like "bottle whistles" in response to this "electron wind" and oscillate, but instead of generating audible sound they generate microwave electromagnetic radiation.
There is also control electronics, motors, cooling fans, etc. that also use some of the electrical energy, but the cavity magnetron vacuum tube by itself uses almost 3 orders of magnitude more of the electrical energy than any of these other parts.
Angela Veum
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What type of energy does a microwave have?
electric
Energy used to cook food in a microwave is a form of what energy?
Electric energy
Energy transformations for a microwave?
Electric energy turns into microwaves, which then is absorbed as heat.
Do you save energy by having all appliances on stand-by when not in use?
No, you are wasting energy. It is better to turn them off at the wall.A:Unplugging them is even better. Unplugging your microwave when it is not in use saves money on your electric bill.
Is a microwave coffee percolator more energy efficient than a electric coffee percolator?
Based on energy efficiency the microwave coffee percolator is more energy efficient than the electric coffee percolator. The microwave coffee percolator uses less electricity, which in turn is the more energy efficient, which is great news for all of us!
Does a microwave use radiant energy?
Both microwave radio transmitters and microwave ovens generate and pour out radiant energy.
What energy is wasted in a microwave?
Electric energy. Some turn to heat in the machine, some turn to noise.
Does a microwave use heat energy?
Yes, microwave uses heat energy. It helps in cooking.
What kind of energy does a microwave oven use?
A microwave oven uses electrical energy (which is electromagnetic energy) from the mains, and it generates microwave energy (which is also electromagnetic energy) to heat/cook food items.
Is the Panasonic Energy Star approved?
No, this microwave is not energy star approved. In fact, Energy Star does not currently approve/label ANY microwave ovens. However, most microwave ovens of the same size/wattage use comparable amounts of energy, and microwave ovens use substantially less energy than conventional ovens.
How do you use electric energy in a sentence?
We use electric energy all the time, for example in our homes.
What are 2 energy conversions that takes place when you warm up a cup of cocoa in a microwave oven?
An energy conversion that takes place when you warm a cup of hot cocoa in a microwave is a transfer of heat from the microwave's microwaves to the hot cocoa.
