It works by bombarding the food inside it with microwave (radio wave) energy. This causes the molecules inside the food to become excited and generate heat.
The input energy is electricity. The output energy (what does the cooking), is microwave radiation.
A microwave does not give off electricity.
Inside a microwave oven,microwaves are made when electricity passes through a device called Magnetron.Magnetron uses a strong magnet. The electricity and the magnet make microwave electromagnetic.
Electricity is converted into the electromagnetic wave called a microwave.
It has 1000 watts
By a long distance, using a microwave is more conservative on electricity than by using resistive heating that a stove utilizes.
The working part of a microwave is a cavity magnetron. In essence it converts electricity into radiation of the microwave wavelength. The radiation then excites the atoms in the food and it becomes hot. The Cavity magnetron was also a vital invention in the history of radar, without it the Allies might have lost the second World War.
There are a number of components in any circuit and their job is to restrict the flow of electrons and reduce the current or voltage flowing by converting electrical energy to heat. In other terms, electronics control the electrical circuit. Electric charge is nothing but the flow of electrons from one object to another. The working of the microwave is the example of how electronics work. In a microwave, electricity provides the power that generates high-energy waves that cook your food and electronics controls the electrical circuit that does the cooking.
Microwave.
You can save a lot on energy consumption by using your microwave instead of a conventional oven. Not only does a microwave cook foods faster, conserving electricity, but it does not heat up your house the way a conventional oven does, requiring your AC to work harder. And the latest models like the JES1142SJ countertop microwave are made to be energy-efficient.
kilowatts
If it has LEDs (as in a clock) then it does, a few millamps. Otherwise it doesn't.