afxinfinitee then your physics course was pretty bad. Because Scott explained the theory very poorly (in order to make it ‘easy to understand’). For example induced current in a loop of wire is directly proportional to the rate of change of the magnetic flux of the loop. He explained this without using technical term (which is great) but is not the general case. Also, electromagnetic induction is described by Faraday’s law of induction, not Lenz’s law. Which can be derived from Faraday’s.
@sebastian bradfield College equates to the last two years of US high school, 16-18. In the UK we finish high school at 16 with GCSEs, go to college for two years to get A Levels and these A levels are what we put towards our degrees. GCSE and A Level physics included an electronics module.
I love how you explain about this, my teacher always explained to the classes like spelling a magic. After he finished spelling, i dont know why all the students like got amnesia, even me.
GreatScott! I would like to ask you I have made the bench power supply from an old pc power supply And I did every thing like you did But I can hear a weird sound coming for the power supply And I tried to attach a car horn to the 12 volt line And the power supply turned off
You have no ideia how rare is your video. Simple and directly to the point. I mean rare because I'm watching several videos and very few explain right.
Thanks! This was actually a VERY helpful video. As a beginner in this area of science, I am very grateful for the thorough explanation and example. Thank you.
Man you are awesome I can't thank you enough. You teach the electronic much better than my high-school teacher, and you have great equipment over there. Thanks again for the all of your videos. Waiting for the next one.
Just want to thank you for the videos, find them entertaining and educating. I'm in my thirties and haven't done anything with electronics since I was in my mid teens as I've been on the programming side. these videos just nicely click my memories back into place.
when you talked about how we have a field in our bodies bc we act like an antenna it made me think of something i realized as a kid, mp3player's that have a radio option but require headphones to work the radio use your head as a way to get signal. i found this out bc slight twists of my head could make me lose signal to some stations. i thought it was cool. you could even boost signal by touching the earbuds with your fingers.
I just watched 2 of your videos and subscribed because I actually understood this one, and it helped me understand a lot more about the tools I use daily in SaaS. The other was the explanation you gave on salvaging parts. It was like (a summary of) a book summary on what is inside of those things, for us non-hardware folks.
Scott your Great😎 well presented When you say "iron" the R needs to be silent. It's more I -on. It did make me smile, love the channel and ALL your videos an projects.
When I was a little kid i would hook up a 9v battery to a coil and when I disconnected it i noticed I would get shocked. So I added few wires to end of the coil. Had some handles to ends and had kids at school hold on to them. So they would get shocked when I turned it on and off. It was quick pulse nothing to painful. Just fun and games. This makes sense now. Later on I used a 120v wall adapter transformer and had it the opposite way. Added a small Dc motor so it would turn on and off really fast. So if you held on to it. You would not be able to let go.
Well, hmmm, I understand most electronics on any circuit board, I was very excited to see you doing this one on coils. I still, well you lost me. I'll watch it again. I wish you had given an example say in a common circuit like a small amplifier, and show the difference with and without the coil. Also what is the difference between a coil and a choke? I need to watch this again.
I like the water analogy for inductors: A water pipe with a heavy (flywheel-like) turbine put inline. It takes some work to get it spinning, but then when you disconnect the input - it still wants to spin for a bit. If there is no output path - the pressure will momentarily rise as the water is "kicked" by the inertia of the flywheel. Water pressure=voltage, flow speed=amperage, water volume flow rate=power, pipe diameter/flow impedance=resistance, static pressure needed to open 1-way valve=forward voltage
learned how to build my own telicoil headphone for 5 dollars with my own inductor so I have wireless headphone for my hearing aid and cochlear implant. the original one cost 80 dollars so I found one that's cheap but it broke. now I know how inductor works.
Another great video especially like your DIY bench power supply which I am trying to recreate using a 10A 12V input supply,should be good when finished 😉
I think there is a problem in 5:14 1 min before you said induced current in a inductor is in reverse direction. But while you explain boost converter u said after switch off I induced feeds the circuit to 5V. I think it should be ; Stored energy in inductor feeds the circuit to 5 V. Not a native english speaker so i hope i could explain what i mean :D
I want to connect my 12v dc motor to a adjustable plug in power supply for purposes of making a small lathe(ergo the engine load will be high when applying chisel to wood). Do I have to use a fly back diode like shown to protect the coils of the plug in trafo?
+greatscott I'm looking to build a simple circuit for an automotive application. In some vehicles, when you shut the doors, the interior light fades off rather than just going flat off. I'd like to incorporate this feature into my pickup truck. Considering all the incandescent bulbs inside have been replaced with LEDs, I don't have to deal much current. I'm thinking a beefy capacitor or two may do the trick, but I'm sure it's more complicated than that. Everything is for some reason. Do you have any suggestions?
Love this video! I always wanted to see on a scope what happens when you vary inductance in a circuit. I wish I would have seen this video years ago when I was in college. thanks. :)
Dear @GreatScott! so is it safe to assume that it never hurts to have a flyback diode at the ends of every induction coil we make at home no matter the use?
Are their better materials to make coils out of? Can you make a silver coil? Will it do the same thing as a copper coil? Also are their better materials for the core instead of iron?
Hello great Scott you are my favorite youtuber! Can you please make a video on how to turn a regular step down transformer into a high voltage transformer
Great video. This reminded me of a problem I have. I have an old calculator that ran on 2 rechargeable AA. I would like to convert it to using its' wall wart how do I bypass the batteries and use just the charger.
If the charger is the same voltage as the batteries are putting out then just clip the end off the charger and connect the wires directly to the battery terminals
Great Scott, help. I am trying make a boost converter, i am using a 1.2mH inductor and PWM from arduino, but i dont know which frequency i have to used, because if a use a low frequency my inductor gets saturated, and if I use high frequency the wave form gets distorted. Help
Can't remember, but did you mention that it is when the field generated (by the current flowing through the coil) collapses that current is supplied by the coil?
Hey, i have a little Problem in my Car with electric. I had build in a custom clock cause the orginal is broken. I had bought a click that looks very simliar to the voltmeters (red leds). Now the problem is that the clicks generates some high freauency noises. What can i do that it dosent make any noises any more?
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
I've learned more about electronics on this channel than I did in physics in college.
afxinfinitee then your physics course was pretty bad. Because Scott explained the theory very poorly (in order to make it ‘easy to understand’). For example induced current in a loop of wire is directly proportional to the rate of change of the magnetic flux of the loop. He explained this without using technical term (which is great) but is not the general case. Also, electromagnetic induction is described by Faraday’s law of induction, not Lenz’s law. Which can be derived from Faraday’s.
zazke_girotron hey dude I am a fish!
Informative Videos Are Better Than School Books.
@sebastian bradfield College equates to the last two years of US high school, 16-18. In the UK we finish high school at 16 with GCSEs, go to college for two years to get A Levels and these A levels are what we put towards our degrees. GCSE and A Level physics included an electronics module.
In other words, college is useless
I love how you explain about this, my teacher always explained to the classes like spelling a magic.
After he finished spelling, i dont know why all the students like got amnesia, even me.
Mr GreatScott!
I have a physics exam tomorrow and it's all about coils and lens law and I think that God had sent you to rescue me .
ahmed alhloul Good luck!
GreatScott!
I would like to ask you
I have made the bench power supply from an old pc power supply
And I did every thing like you did
But I can hear a weird sound coming for the power supply
And I tried to attach a car horn to the 12 volt line
And the power supply turned off
ahmed alhloul
Check whether all binding posts are isolated from one another.
Lol
ahmed alhloul how was the exam?
You have no ideia how rare is your video. Simple and directly to the point. I mean rare because I'm watching several videos and very few explain right.
Thanks! This was actually a VERY helpful video. As a beginner in this area of science, I am very grateful for the thorough explanation and example. Thank you.
I'm studying to be an engineer and this really helped me visualize what they taught in our circuits class
I really appreciate what you're doing man I believe a lot of people might be also thankful for what you do please keep it going!
That info about the human body generating a 50 hz signal blew my mind. It cleared so many of my doubts!
Best explanation of inductors on youtube imo! It helps if you think of current as a slower version of voltage.
I wish this video was LONGER you do such a good job.
Man you are awesome I can't thank you enough. You teach the electronic much better than my high-school teacher, and you have great equipment over there. Thanks again for the all of your videos. Waiting for the next one.
Just want to thank you for the videos, find them entertaining and educating. I'm in my thirties and haven't done anything with electronics since I was in my mid teens as I've been on the programming side. these videos just nicely click my memories back into place.
Your channel is probably the best electronics channel on UA-cam :)
You are an excellent teacher. I know a few EE's who doesn't know anything in comparison with you.
Great explanation, keep making these videos!
Your videos are the BEST on youtube !
A very clear and concise video. A great job of explaining the function of coils/inductors.
Your English is better than my understanding of Electronics. I Know Nothing! Hogan! ;-)
when you talked about how we have a field in our bodies bc we act like an antenna it made me think of something i realized as a kid, mp3player's that have a radio option but require headphones to work the radio use your head as a way to get signal. i found this out bc slight twists of my head could make me lose signal to some stations. i thought it was cool. you could even boost signal by touching the earbuds with your fingers.
i am studying for next year engineering xams and these videos Really help me understand why and how these things works keep it up
I can't believe i finally understand what these coils are for, thanks for a great and easily understood lesson!!
Big thanks for all this Scott, I stumbled upon you and now look forward to seeing more, keep up the good work.
you explain better than my teachers thank you thank you thank you
I just watched 2 of your videos and subscribed because I actually understood this one, and it helped me understand a lot more about the tools I use daily in SaaS. The other was the explanation you gave on salvaging parts. It was like (a summary of) a book summary on what is inside of those things, for us non-hardware folks.
Ahhh u briefly mention boost converters in this video. Even that small diagram helped solidify what I understand about them. Thanks!
So glad you're doing your electronics lessons again!
awesomeguy2802 Thanks, there will be more of them in the future.
Why I didnt had an electronic teacher like Great Scott in College?INspiring
I din know someone could make a someone what mundane topic so interesting. ...
Simply fantastic, great scott is awesome
resistance is futile.
LOLZ!
@Potonicml 🤨
Scott your Great😎 well presented
When you say "iron" the R needs to be silent. It's more I -on.
It did make me smile, love the channel and ALL your videos an projects.
Dean Greenhough Thanks ;-)
Best video on explaining inductor and its application
When I was a little kid i would hook up a 9v battery to a coil and when I disconnected it i noticed I would get shocked. So I added few wires to end of the coil. Had some handles to ends and had kids at school hold on to them. So they would get shocked when I turned it on and off. It was quick pulse nothing to painful. Just fun and games. This makes sense now. Later on I used a 120v wall adapter transformer and had it the opposite way. Added a small Dc motor so it would turn on and off really fast. So if you held on to it. You would not be able to let go.
Thanks for the info. In all of your videos you explain really well :)
Keep up the good work!!!
You have a gift for explaining things. Thank you for everything.
Thanks for the many great Screenshots, very comprehensive.
thanks really helpful you've given me the chance to learn about my hobbies on a deeper level
I really love your tutorial! Thank you so much!
great video. lot of info I was looking explained in such a short video.
Okay that intro is awesome very unique and cool
Thank you for sharing your knowledge on coils with all of us....
Excellent. You've got a great channel. Keep up the good work.
Well, hmmm, I understand most electronics on any circuit board, I was very excited to see you doing this one on coils. I still, well you lost me. I'll watch it again. I wish you had given an example say in a common circuit like a small amplifier, and show the difference with and without the coil.
Also what is the difference between a coil and a choke? I need to watch this again.
Awesome video!!!! Thank you for breaking everything down into lamen terms.
Tell us more about radio frequency. Maybe building a very cheap Pocket radio?
therealfox Good idea
Yea, that is what you call a good idea!
therealfox +GreatScott! Please do a tutorial on that, I'd love to understand how these circuits actually work
What an excellent channel. Subscribed and Liked.
I like the water analogy for inductors: A water pipe with a heavy (flywheel-like) turbine put inline. It takes some work to get it spinning, but then when you disconnect the input - it still wants to spin for a bit. If there is no output path - the pressure will momentarily rise as the water is "kicked" by the inertia of the flywheel. Water pressure=voltage, flow speed=amperage, water volume flow rate=power, pipe diameter/flow impedance=resistance, static pressure needed to open 1-way valve=forward voltage
GreatScott! Amazing video please keep up the good work!!
Truly Great Scott , can u please make detailed videos on BOOST , BUCK , and BUCK-BOOST converters
i like this guy's tones. pretty
5:51 The inductor before the capacitor ?
5:55 Should the inductor be placed before or after the capacitor ?
I can't be thankful enough for your videos! But I got to ask.. Do you study? Or have you finished studying and you're working now? If yes - Where?
***** I am almost done studying electrical engineering.
+GreatScott! where do you study | Wo hast du Studiert ;)
GreatScott! Did you get done with Eletrical engineer? That’s what I will be studying
Love this guy's accent!
great job man i following you from egypt
Back when this video just uploaded, I was studying grade 7. Right now I'm 1st year college and come back to watch this vide again xD
1:42 is one of the biggest mind blows I've had in a while
You sound like the Turminator. This is a good thing.
5:27 I think it is "When the transistor switch opens" instead of "closes". Right?
learned how to build my own telicoil headphone for 5 dollars with my own inductor so I have wireless headphone for my hearing aid and cochlear implant. the original one cost 80 dollars so I found one that's cheap but it broke. now I know how inductor works.
nice tutorial, now I can continue building 9v to 12v converter thx.
Another great video especially like your DIY bench power supply which I am trying to recreate using a 10A 12V input supply,should be good when finished 😉
Why is the current rise not linear in the LED example @4:25? Isn't it supposed to be a dead straight dI/dt line?
NNNI An inductor hates instant change in current, so that's why.
i could have studied this in my university before all the calculations. i didnt believe i skip all this
I think there is a problem in 5:14
1 min before you said induced current in a inductor is in reverse direction. But while you explain boost converter u said after switch off I induced feeds the circuit to 5V. I think it should be ; Stored energy in inductor feeds the circuit to 5 V.
Not a native english speaker so i hope i could explain what i mean :D
0:14 - 0:17 why do I have this toystory meme in mind... "Coils. Coils everywhere"
Yes, your info videos are so helpful! Thank you!
Best channel ever
AWESOME EXPLANATION, .THANKS FOR THE VIDEO.
I want to connect my 12v dc motor to a adjustable plug in power supply for purposes of making a small lathe(ergo the engine load will be high when applying chisel to wood). Do I have to use a fly back diode like shown to protect the coils of the plug in trafo?
Do those standing coils with a ferrite core like the one at 2:48 crate a magnetic field strong enough to pull metal or a magnet?
+greatscott I'm looking to build a simple circuit for an automotive application. In some vehicles, when you shut the doors, the interior light fades off rather than just going flat off. I'd like to incorporate this feature into my pickup truck. Considering all the incandescent bulbs inside have been replaced with LEDs, I don't have to deal much current. I'm thinking a beefy capacitor or two may do the trick, but I'm sure it's more complicated than that. Everything is for some reason. Do you have any suggestions?
Great explanation. I develop training videos and you have given me some good ideas.
Thank you.
Very good video. At 5:48 what is the way where the current flow ??
You're a genius!🙂👍🏻
Love this video! I always wanted to see on a scope what happens when you vary inductance in a circuit. I wish I would have seen this video years ago when I was in college. thanks. :)
and this is the basics.
Hey Scott ( a quick tip) please use more PCBs
Would you make a video about measuring inductance or build a inductance meter? It is really useful.
thanks a lot for this awesome videos with good demonstrative explanations
Dear @GreatScott!
so is it safe to assume that it never hurts to have a flyback diode at the ends of every induction coil we make at home no matter the use?
Why doesn't the current just short between the wires, @ 2:25 ?
Once again, thank you very much.
Are their better materials to make coils out of? Can you make a silver coil? Will it do the same thing as a copper coil? Also are their better materials for the core instead of iron?
I don't know how I ended up here, but I kinda like it, even if I don't really understand how these things going.
good as always GreatScott!, good as always.....
your lc meter is f** awesome !!! good video !!
very good way to explained. Thanks.
Hello great Scott you are my favorite youtuber! Can you please make a video on how to turn a regular step down transformer into a high voltage transformer
I love your videos a have inspired me to do what you do.
So the switching OFF is what creates the Voltage we want from an inductor in a switching PS ?
Deine videos sind sehr genial, vielen dank
Great video. This reminded me of a problem I have. I have an old calculator that ran on 2 rechargeable AA. I would like to convert it to using its' wall wart how do I bypass the batteries and use just the charger.
If the charger is the same voltage as the batteries are putting out then just clip the end off the charger and connect the wires directly to the battery terminals
Nice and informative!
Thank you.
Great explanations. Thanks.
a nice teacher gifts
Great Scott is really great!
Great Scott, help. I am trying make a boost converter, i am using a 1.2mH inductor and PWM from arduino, but i dont know which frequency i have to used, because if a use a low frequency my inductor gets saturated, and if I use high frequency the wave form gets distorted. Help
Can't remember, but did you mention that it is when the field generated (by the current flowing through the coil) collapses that current is supplied by the coil?
more current, smaller (spacial) , but stronger field. Like a stronger magnet only attracts stronger in a smaller distance from the magnet.
I thought it was a boring video .but the video is awesome.its really helpful
I love your videos...You are GOD!!
Hey, i have a little Problem in my Car with electric. I had build in a custom clock cause the orginal is broken. I had bought a click that looks very simliar to the voltmeters (red leds). Now the problem is that the clicks generates some high freauency noises. What can i do that it dosent make any noises any more?
Possibly a capacitor inline could help