What is Induction cooking? The science behind eddie currents in induction cooktops.

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Let's get cooking! Well, I am not very good at making food, but I can explain how my stovetop wirelessly heats up my pots and pans! We look into the science and history of Induction cooking, and explore the electromagnetic force and how it is related to tesla coils!
00:00 Intro to Destructive Creativity and the science of cooking
01:19 What is Induction cooking and induction heating?
01:55 Induction cooktop demonstration and magnetic fields.
08:33 What is inside an induction hob, and how is it like a tesla coil?
10:25 History of Induction cooking
Destructive Creativity and Jonathan Allers are dedicated to providing safe and fun science facts and experiments for all ages (Today is electrolysis chemistry!) Please practice science safely and responsibly. Always use proper supervision. Now go out and learn something!

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5 авг 2024

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Комментарии : 26

@rlearn10 2 месяца назад

Great video and very clear explanation! Just what I was looking for thank you.

@Bruh-jw2ze Месяц назад

Nice video... Highly underrated in number of views

@kvnhmmd 2 года назад

This video deserves more views. My wife was asking me how our induction cooktop works, since she was trying to explain it to her family. After looking at dozens of RU-vid videos, yours was hands down the best and most thorough video that anyone can understand. Keep doing what you're doing. You have potential. Subscribed.

@DestructiveCreativity 2 года назад

Thank you for you kind words, I took the summer off but will be posting weekly come September. :)

@kvnhmmd 2 года назад

@@DestructiveCreativity Enjoy your time off. I also want to say that your audio/video is high quality. I felt like I was watching a mainstream RU-vidr.

@GodsWordMadeSimple 2 года назад

Excellent coverage of a practical but also scientifically fascinating subject! Definitely a great video that can be a lot of help to people whether searching for an inductive system and curious or people that just like the science behind it. Another one out of the ballpark!

@DestructiveCreativity 2 года назад

Thanks for watching. :)

@megannea.1247 2 года назад

Love my induction cook top. :)

@DestructiveCreativity 2 года назад

The best!

@bethjones7572 2 года назад

It's like cooking with magic! Thanks for explaining this one so thoroughly.

@DestructiveCreativity 2 года назад

Glad you liked it!

@james789c Год назад

I would rather say cooking with science ;)

@HurricaneChise 3 месяца назад

This is an incredible video.

@zeonselvarajah5338 2 года назад

Very well explained

@DestructiveCreativity 2 года назад

Thanks for letting me know!

@SuV33358 2 года назад

I have a one burner induction cooktop. It's great the way it heats up so fast, and stops boiling so fast. Easy to control. But the heat isn't even around the plate. At least mine isn't. I have to move the pan to different areas of the cooktop. It works good though. Just my experience.

@DestructiveCreativity 2 года назад

Interesting, I am sure different companies have different levels of quality.

@kvnhmmd 2 года назад

The smaller portable induction cooktops have a smaller coil under the glass compared to a full sized induction range. The heat will be concentrated on the center of larger pans. This will be especially noticeable with cast iron, as that material retains heat well, but is slow to spread the heat. You can work around that limitation by using stainless steel based pans that have multi-ply layers of aluminum, or better yet, copper sandwiched in between the outer layers of stainless steel. This allows the heat to spread out more evenly while retaining the advantages of induction.

@nandodeluca1737 Год назад

Hello. Thanks for the interesting video. I'm looking to put one (or maybe 2) induction cooktops to a unique use. I have a cast iron cooking grate, which I would like to use on top of the induction cooktop to grill meats. The grate has openings in it so I am a bit unsure what will happen to the induction cooktop when the juices from the searing meat meet with the surface of the cooktop. Second, the width of the grate is wider than the width of the cooktop. So I am thinking of using two cooktops side by side and bridging the grate across the two. I am wondering whether having two separate cooktops generating separate magnetic fields that are applied to the same cast iron surface will affect the heating purformance of the cast iron surface (i.e. are the separate magnetic currents that are being generated in jeopardy of cancelling each other out?

@DestructiveCreativity Год назад

Cool idea! I personally haven't tried what you mentioned, but I'll answer as to what I think will happen. I believe that there would be no ill effect with using two cooktops on the same piece of metal. The rapidly changing Eddy currents most likely wouldn't interact. But the heating effect may be eliminated if you use an iron cooking grate. It's a bit complicated as to why, but I'll add a link to a cool article regarding eddy currents and magnetic braking. Hope this helps! www.texasgateway.org/resource/64-eddy-currents-and-magnetic-damping

@iwayamazeki 2 года назад

Okay, I understand the transformer part. I don't understand the speeded-up AC cycle. What is its purpose and how does it happen? Are thousands of eddy waves better for producing heat than dozens?

@DestructiveCreativity 2 года назад

Good question! I am far from an electrical engineer, but from what I understand, the power unit (inverter) within the induction top in responsible for the increase in frequency, and the direct result is a much higher current and wattage within the final element of the pot or pan.

@iwayamazeki 2 года назад

@@DestructiveCreativity And thus the water boils. Thank you!

@ruthhelen2990 2 года назад

I am still confused as to why the pan has to be magnetic. Surely eddy currents will flow in any conducting material, for example copper. Why will these not heat up the pan base?

@DestructiveCreativity 2 года назад

Great question! The very quick answer is that the eddy currents will flow in material like copper, but due to the high conductivity (low resistance) of copper, the heat gain is so low that it is almost undetectable. I don't recall if it got included in the final cut or not, but there is an awesome piece of engineering inside most stove tops that detect the magnetism of the pan to determine its conductivity.

@jeffreystollery3155 7 месяцев назад

@@DestructiveCreativity Seems to me that this answer doesn't solve the original question. By the logic of your answer we could use aluminum pans, as they have a high resistance. But that is not true. I'm thinking it must be a pan made from ferromagnetic material as it probably heats up by vibrating the the magnetic domains and actually not really creating actual currents within the pan (or at least the currents shown in the video). I came here trying to trouble shoot a broken burner for my friend. The burner is not sensing the pan. Seems to be a malfunctioning sensor to sense if the pan is there or not (or made from the correct material). What do you think the sensor is detecting? Could it be a hall effect sensor? any ideas?