Microwave Oven and it’s working
Microwave ovens are very common in our kitchens nowadays. We cook or heat the food at a blazing fast accelerate thanks to electromagnetic radiation and electricity. But sometimes, we truly wonder how does a microwave oven work ? here we have explained the working principle of the microwave oven .
Brief history of microwave oven.
American engineer Percy Spencer invented the microwave oven during the World War 2. actually, the real number credit goes to the growth of pit magnetron in the UK. Cavity Magnetron produces belittled wavelengths. These wavelengths are extremely desirable for microwave oven. however, these units were huge and not desirable for home use .
furthermore, Sharp Corporation introduced the first commercial microwave oven in 1970. These microwave ovens were small and could easily accommodate in homes. In addition, the price of these microwaves was low compared to previous versions. Since then, the microwave oven is part of every kitchen around the populace.
How do microwave oven work?
First of all, microwave ovens heat the food from inside by passing electromagnetic radiation through the food. The reference of the electromagnetic radiation is the magnetron inside the microwave oven. These radiations are non-ionizing radiations. In summation, the frequency of the microwaves is higher than radio waves but lower than infrared alight .
The magnetron takes electricity from the exponent grid and converts it into microwaves having a frequency higher than radio waves. This magnetron then directs these waves over a waveguide .
furthermore, the food inside the microwave endlessly rotates in a circular motion. so, it ensures flush heat of the food. The microwaves inside the metallic element compartment of the oven bounce in diverse directions. The brooding surfaces inside the oven keep them bouncing in different directions. During this motion, the waves pass through the food .
The waves while traveling through the food vibrate the molecules in the food. As more and more waves pass through the molecules, they began vibrating very quickly and produce heat. therefore, these waves pass the energy to the food making it hot .
In addition, the microwaves heat up the water molecules at faster rates than any other molecules. so, food with higher water contented heats faster when we compare it to solid or semi firm food.
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The microwaves can ’ deoxythymidine monophosphate penetrate deep inside the food. The inside of the food is broadly cooked by the conduction. This means you have to wait until temperatures inside the food scope cooking temperature by conduction and not by microwaves. We have to keep this in mind. otherwise, the food inside will remain uncooked while the outer layer appears to be ready .
The safety and microwaves
The microwave oven has safety measures in place to avoid microwaves going outside of the microwave oven. The holes to the microwave wall won ’ deoxythymidine monophosphate pass any waves outside because the waves are large and won ’ thyroxine go out. Another safety standard is the automatic twist off of the magnetron when you open the door unintentionally or intentionally. thus, it promptly stops producing microwaves .
furthermore, by any means the waves come out, they don ’ metric ton harm homo tissues. As the waves move outside the oven, the energy levels of the waves drop with distance. Hence, they don ’ t have enough office to harm human weave when the waves come out. But, you should replace or repair the microwave if you find it leaking the waves external, on to be safe side .
Speed and efficiency.
The microwave oven heats the food faster and that is its biggest advantage. You besides think that it will be more efficient as it requires less time to cook the food. unfortunately, that is not the case. The microwave oven requires lots of electricity as magnetron itself is not that effective when it comes to conversion to microwaves .
In addition, you will require an extra motive to turn the food inwardly in a circular movement. You will besides need to keep magnetron cool. Magnetron heats up reasonably quickly and may require an extra winnow to cool itself. All this summation about comes closer to the efficiency of the traditional oven. thus, there is not much deviation when it comes to efficiency. But yes, you can cook or heat the food faster in the microwave than a traditional oven.
Read more: Microwave Corn on the Cob – The BEST Way!
In conclusion, the microwave oven has changed the way we cook food. It besides brought more opportunities in the food packaging industry. so now, you can have your delightful food fix on the table in a matter of minutes .
Watch working of microwave oven:
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