Inductance basics

[@Afrotechmods]

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[@hcoguitar]

I just stumbled upon your channel. I'm an EE with 5 years experience and it's been great refreshing my knowledge on some concepts that have gotten a bit rusty on me. You explain things incredibly well. +1 to your subscriber count.

[@liam3813]

the first vid which explained inductance very clearly. and it isn‘t unnecessary long in comparison to others. good job!

[@danjackson1584]

Excellent videos. I really appreciate the time and effort you put into these.

[@edwarduzumakielric]

I LOVE inductor. They are the underdogs of the passive components

[@jakkarius]

Your videos are amazing! I don't know why I've been learning electrics at college for the past 2 months, I've learnt so much more on your videos in a couple hours! Makes great revision, thanks man.

[@flurng]

Thank you for posting this series of tutorials! I must say, you have an amazing ability for making the most abstract concepts as clear as a bell for thickheads like me, while still finding a way to make learning entertaining! Who says knowledge has to be boring? Well done, sir!

[@theoldwizard998]

Ammo1313 - What appears to be "bare" copper wire in the video is in fact "magnet" wire. Copper wire with a high temperature clear/colored insulating varnish. Not really a good idea to twist the wires together as shown in this video because too much flexing of the varnish will caused it to fall off and then you will have a short circuit instead of an inductor.

[@josephorlando7601]

Can you do an episode on making an inductive heater?

[@DOOMwithaView]

I have just watched 5 of your vids and just subscibed.How in the world would anybody dislike this video is beyond me.I am currently getting my BA in engineering and your vids are more informative and relative than most my classes, are you a teacher? anyway I will watch all your vids PLEASE PLEASE KEEP THEM COMIN. and Thank You

[@mikado387]

Youre making awesome videos especially for begginers with electronics.

[@kb3svj]

Thank you for sharing freely with us your knowledge.

[@WDnargerSealman]

Great video mate, really helped to put things into perspective

[@Banzay20]

If you want to build a small generator(dynamo) for bike lights let say, can you approximate power output by knowing how many henrys you have in a coil?

[@Crobisaur]

thanks for making these, they are succinct and informative!

[@sibalogh]

Please, could you suggest a good, yet cheap, equipment! I wanna get back into service repair and, preferably, do more R&D and an afordable anlyser would come handy including that LCR meter you mentioned.

[@jeremyhenderson163]

I love your videos, very informative. I'm fairly new to electronics so please forgive my ignorance, how would one go about figuring out the specifics (number of turns,wire gauge,etc) to achieve a desired voltage?

[@jeremyhenderson163]

I'm trying to build a stator for a 12-24v generator (2-phase, 8 coils, using 20 gauge wire), but I'm uncertain of the coil design needed to achieve the voltage I desire (at 1650RPMs, if that is a needed factor?). I have scoured the internet looking for a solution, but I haven't had much luck. Probably due to my limited electronics vocabulary.

[@xerxes666]

So basically.. if I combine induction coils.. I get increased electrical resistance capacity? Is that correct??😱😱???

[@justinwiden]

thank you so much for this great explanation! Though I have one question, you can use inductors to filter out HF(high frequency) current changes but you use capacitors to filter out low frequency current changes, yes? that's why you cant just use capacitors instead of inductors right?

[@uwiseahmed9395]

what is the exact purpose of an inductor? Is it just to slow down the current flow?

[@Neo-po2xw]

Uwise Ahmed No it is used to store energy just like capacitor.

[@uwiseahmed9395]

@@Neo-po2xw Hey Neo, Then what is the exact difference or purpose of both?

[@phoenix2038]

would the secondary of a mini iron-laminated transformer be in the microhenry range or the millihenry range?

[@luckyduck3594]

Would there be a benefit of using an inductor instead of a transformer on a power supply?

[@architectq8i]

Great videos. Direct farward. Everybody should subscribe and thanx for your effortt to produce these great vidoes.

[@CarlosRaulEstrellaRuiz]

Good day sir. I have a question and if it is in your possibility, I would like you to help me with it. what is the difference Surface SMD 102 and 101. I need to replace them but I only find the 101 on the market. Thanks!.

[@jamesandonian7829]

I'm building a massive full bridge rectifier that I'm hoping will be able to handle 1000w, would an inductor like the ones in this video work well to help smoothen out the ripples? in addition with a capacitor bank and a 1/4w bleed resistor.

[@ClaudioFontachannel]

it's very useful and clear. Thanks

[@captainprototype187]

How does the inductor's magnetic field create energy? I am interested in buck converters.

[@aussiefamilybudgetcooking]

You are very good at doing tutorials :D I actually get it :)

[@markomarosevic5240]

Thanks for a good explanation :))

[@neviemdopice]

oh and second question, do you think the meter I bought is far worse than LC-1000A you posted? Love your videos!

[@free_spirit1]

lol, nanohenry in italian sounds henry the dwarf haha. great videos, thanks for posting!

[@marty7922]

@ 1:56 the air-core inductor appears non-insulated, shouldn't you have used coated copper like in windings?

[@czmik]

If i connect a big coil and a diode to my arduino will the tone() command sound different?

[@tanchienhao]

0:36 may i know what is that box-like component behind? i scavenged one from a radio too but i am not sure what it does. thanks

[@johncarr123]

I am going to make a LC filter for video transmitter that draws 150 ma at 12 volts that will be supplied by 11.1 V 2200ma lipo battery. I am going to use a small inductor form an old power supply that looks like the one that is 3rd from the right in your video. Since the transmitter only draws 150 ma I should be fine using a smaller inductor and a 470uf capacitor rated at 25 volts. Am I thinking correctly?

[@Pupperoni938]

Love your videos, as always. I just have a few quick questions. I have an old 'borrowed' phone charger in front of me with a bridge rectiIfier, a mess of capacitors, a voltage regulator and what looks like an inductor. If capacitors and inductors are so similar in function, what's the point in having both? What's the difference? Thanks, and I look forward to new videos. :-)

[@dmxspider]

+ 3 for my knowledge :D thanks. (yeah I reallly didn't watch these in order)

[@trance183]

I'm still waiting for the recommended LCR Meter Mr. Afro. I'm torn on spending more than 100 bucks on one.

[@l3urns1]

I used to work at agilent. it was the only job I really enjoyed

[@NaokisRC]

So why if Capacitors and Inductors are very similar are they both used? I assume maybe inductors are for filtering signals and caps for filtering voltage/current?

[@johndehp8092]

Sir pls tell me, what is folded on the coil? Is it copper wire Pls reply sir waiting for

[@rogerbrowne6636]

Hi my name is Roger 64 years old and was wondering if inductance could tell me what the Amps would be on the out put of a transformer I just bought a inductance meter and I am not sure how it going to help me new at this. Regards Roger.

[@renatoa3762]

excellent video

[@pradeepgupta1190]

If i wrap copper wire around copper glass then will it work like coil . Will it heat my copper glass at low temprature .....

[@gazaziho]

Informative video .. thanks alot

[@neviemdopice]

I have a question. I would like to measure capacitors on my dead LCD backlight issue and bought a "Inductor Resistors Capacitor LCD Digital Meter Tester" from ebay @ 17.99$+8$ shipping (almost the same price as LC1000-A you posted in the description). Now both of those seem to only test for capacitance / inductance, in F or Henry. However the meter in your video also shows the ESR value. Three questions:

[@KoenOnbekend]

I believe the glue is used to stop them from resonating on high frequencies

[@Chickennuggetjoes]

I have a solenoid valve that has 134 mH as its electromagnet, so whenever you cut its powering shocks you

[@fede142857]

A 1:10 I heard "5 million henry inductor" and the first thing that came to my mind was: "Holy shit, with that inductor I could bring Call of Duty's EMP Systems to real life"

[@baronsting]

What do you recommend is the best way to measure coils to find out in Henrys what their inductance value is? Do they sell meters, or build some device at home, what is your advice? I want to be able to measure coils that I wind myself using 42 awg wire. Thanks

[@AlexLPD]

Thank you for the explanation!...

[@sidamarali3030]

Wow wow wow !! Here is the knowledge that increase adrenaline in my blood. Thanks a lot for sharing.

[@trainer2018]

Hello, what type of Lcr meter should I buy if I want to check inductance of low resistance motors? This meter would be used in automotive applications

[@Khabirov88]

dear sir am really a big fan of your videos, well i have a question , i have an integrated subwoofer amplifier, which when you connect the wire, it blows the car's fuse. when i connected it on my 12v adapter it does sparks on the wire dock. what could be the problem? thank you.

[@lighting43]

I need some help fault finding on a Circuitboard. The board is one of manny in this device. It's a (martin mac 550) but you don't need to no that right now. When I heat the mean Power supply board up with a hairdryer etc it works fine. It's got capacitors, voltage regulators, inductors and much more ware is best to start looking? It's all most like the output voltage it's at the right voltage. Any thoughts?? Thanks.

[@orcoastgreenman]

lighting43 - try heating it up til it works, then spraying canned air at different areas of the board... That may help narrow it down.

[@DXR13KE]

@Ammo1313 An inductor can be made from about any wire, as long as the coils are isolated from one and the other.

[@ziadsmy]

Great video.

[@J4e8a16n]

Great videos.

[@RaulBillieJean]

great video

[@bombadeagua]

Nice videos, thanks!

[@neviemdopice]

1. when a capacitor or coil goes bad, can this be detected using LC-1000A by measuring only capacitance / resistance of the particular part? Is there a possiblity that a coil / capacitor still reads good inductance / capacitance values BUT has high ESR and therefore is bad? ..actually that's only one question. Thanks!

[@uwiseahmed9395]

if that's the case, is it the same as an resistor?

[@lvladimirov]

Hi in order to buy this i need to calculate the value of that coil 6 Turns, #16 wire , 9 mm diameter. so #16 wire is 1.291 mm right, By my calculations it should be 0.211(uH) Am I right? Thanks!

[@MirkWoot]

ugh.. and i just took out inductor of old power supply as shown in video, expecting it to work somewhat in speaker frequency filtering :P. .. should had seen first.

[@TheBaconWizard]

I want to run a 10kw DC motor at 72v but can only use a 24v battery. I was simply going to make a voltage trebler using capacitors, but could I use an inductor to smooth the output? I have access to any size iron core up to big enough to put your head in! Also, would an inductor demand current from the battery such that by trebling voltage, I still get a duty cycle that is more than 1/3 ? (But run the battery down faster of course)

[@ArcadeGames]

Do these inductors ever fail or get overloaded?

[@Alexthebro265]

i wonder what would happen if you stuck a peice of metal in the center of one while it's running.

[@joeyocom5087]

magnets will change frequency

[@jon123423]

So AC voltage is square form by adding smoothing Caps and bridge rectifiers only smooths (less pure DC current) the current out so much but if you put an inductor before the caps and rectifier then the end result would be more purer (stable) DC volts?

[@Mahia965]

Gotta love the "Boom Box from the 80s"!

[@Ammo1313]

Can this be any wire or should it be magnetic coated wire?

[@007foppe]

inductors are in speakers to ?or em i wrong thought while ago opened up a 3 way speak and i see coils to in it i also notice if i removed it the sound that comes out of the speaker was alot different the biggest speaker also you hear the voices now and with the coil the voices where gone i hope i explained it right

[@JPa311979]

Could using a bolt have a similar effect? 1:58.

[@ChapuDelValle]

Are chip inductors hot when operating?

[@Afrotechmods]

Anything will heat up if you push enough current through it!

[@mrcoolabhishek123]

Thank you

[@rogerwood8285]

Do the turns touch one another or are they insulated

[@Afrotechmods]

They are insulated. The inductors are made from a special type of wire with a thin layer of insulation

[@IRFP250N]

@top2percent How about, "Oh Henry!". Would that work?

[@giggitygoebbels3612]

0:44 how to see the difference between a ceramic smd cap and this kinds of inductor?

[@ozzie_goat]

***** A trillion ohms? Hm..doesn't seem right.

[@ozzie_goat]

I never knew SMDs had that much resistance. Makes me wonder why.

[@madjimms]

How would I create an UBER simple 80hz low pass filter using only household components (or broken electronics)

[@MrCuddlyable3]

Slide a ferrite core into an inductor winding.

[@MrCuddlyable3]

top2percent the World waits agog for your awesome pun comment. Somehow you have the capacity to induce such high tension that it hertz.

[@top2percent]

I wish I could come up with a pun about inductors... Then my comment would be awesome.

[@dancoulson6579]

Compare the circuit boards at 0:17 and 0:39 - Modern PCB's are so bland, lacking character and colour.

[@DXR13KE]

@BeeRich33 Yes, google variable inductor.

[@MrNathanShow]

cool!

[@IRFP250N]

That's for very large inductors (mega: million).

[@Yulian.Mladenov]

In short, Henry measured the strength of the magnetic field?

[@miketoreno4969]

Thx m8

[@tyttuut]

My name is Henry :D

[@hedgehogthesonic3181]

Hello there Mr. Inductance

[@prestigionr]

40e for a shitty meter? dode on ebay u can have it for 13e

[@Ammo1313]

@DXR13KE Thanks.

[@yurigagarin4974]

I know kung fu!!

[@czmik]

If i connect a big coil and a diode to my arduino will the tone() command sound different?

[@MrCuddlyable3]

Slide a ferrite core into an inductor winding.