Why RELAYs go BOOM!!! And How to Use Them

[@Hansgp1000]

"Lets make an educational video about relays..." 4 min into the video: "I can make a taser out of this!"

[@-na-nomad6247]

We can make religion out of this.

[@lordsqueak]

That brought me back to school, where that is exactly what we did. That special pitch of the relay still makes me worried today.

[@irenaevs]

@@-na-nomad6247 Mehdiism?

[@davisdiercks]

Michael Reeves has joined the chat

[@scienceteam9254]

Michael Reeves is his nephew.

[@Miata822]

I designed things with relays for decades. Far too much of what was in this video I had to learn the hard (smokey) way. Adding the zener diode was new to me though and is a brilliant simple solution when faster response is needed. Back in the day I used more costly solid state relays when I needed faster response. Could have saved buckets of $$$ using $0.10 zeners instead.

[@Miata822]

*For anyone confused by the above or just now hearing about "solid state relays" just know that is the really bad name the industry gives to large MOSFETs that are packaged like panel mount relays.

[@mrezniable]

Hello colleagues electro engineers, me to as well.

[@musicalrainbow5438]

@@Miata822 i got it

[@SirDella]

Why did you need such fast response times?

[@natalieisagirlnow]

@@SirDella really fast blinkers

[@MasterofOrion]

"I receive a shock" Casually smiles as if it's a good thing

[@parrotroyalty8906]

It inspires the science in us😁 So, yep its goood

[@AxxLAfriku]

NO! NO! NO! Many people say I am sick in the head. NOOOO!!!! I don't believe them. But there are so many people commenting this stuff on my videos, that I have 1% doubt. So I have to ask you right now: Do you think I am sick in the head? Thanks for helping, my dear ajf

[@oskarkrogsgard3014]

@@AxxLAfriku lol wut?

[@deaneatsgreens]

@@AxxLAfriku bruh

[@mycosys]

every shock is more views XD

[@uplink-on-yt]

This guy will never die. He’ll just shock himself back to life.

[@RazorM97]

Electroboom: * touches keyboard * Keyboard: * sends a shock *

[@ZeldagigafanMatthew]

He's a bit of a professional idiot. He knows what he's doing so he can do this dangerous shit safely.

[@somerandomguyontheinternet7330]

@@ZeldagigafanMatthew smartn’t

[@jeremyreese54]

@@ZeldagigafanMatthew Doesn't mean he hasn't deadened his nerves. I'm a professional too... I once stood next to a panel holding a 18 gauge signal wire that was shocking me, all the while pondering how it had enough current to go through my PPE. I wasn't touching anything but the wire by the insulation, the current wouldn't have been able to flow any way but through me, my electrical boots, the rubber insulated mat, cement floor and finally to the ground. Still have no clue how the current for that particular signal wire was so high.

[@nigeljohnson9820]

@@jeremyreese54 high frequency RF signals do not require a direct path to earth. Any large body acts as its own earth, as the AC signal is constantly charging and discharging the capacitance the body represents. The are a number of ways an active load could superimpose an AC signal, even on its DC supply, but such a condition would-be the result of bad design or very high power.

[@sreflectionbg]

I am a technician and relays are very familiar to me, but listening you explain them was most entertaining. Pick up and release voltage I did not know of, to be honest, so I learned something today!

[@franciskovscek5881]

I am a Physics teacher, When a student out-thinks me I find that experience to be both exhilarating and anxious at the same time. It is wonderful to know that you and your daughter can experience that as well. Love your channel!

[@SHAIK_FHAREEDH]

@hoiy vinosa i jealous you.😒

[@sheetsda]

A similar thing happens in software engineering: Sometimes I will run a program with a known set of conditions to verify that the output is correct. Occasionally I will get what I think is an incorrect output only to discover while tracing the logic that the program is correct - my expected answer was wrong.

[@Tubluer]

Actually, his daughter out-thinks him with monotonous regularity. It must be kinda depressing.

[@BariumCobaltNitrog3n]

@@Tubluer And she plays the piano.

[@FilamentFriday]

Brilliant. I know relays really well and have used them in lots of designs yet you still taught me something regarding the continuous arcing.

[@Sparkette]

They're sponsoring you too?

[@Power-Wiesel]

@@Sparkette Why should relays sponsor him?

[@Thomas-oi9ig]

@@Power-Wiesel Brilliant

[@clunkonester4884]

Same, I love relays from how unique they are, too bad I only have 1 in my home :(

[@deltab9768]

One random thing I'll add is that they have a lower contact voltage rating for DC than AC,because there are no interruptions to the current that would let the arcing stop. A relay designed to switch 5A 120VAC might only be rated 30VDC, and might arc permanently and burn up when "switching" 80VDC 3A.

[@PlasmaChannel]

Somehow, building a relay using a freaking spoon is actually quite Brilliant. Yes. I went there.

[@projectswithbrent1206]

Well hi😂

[@plasmawave2565]

I guess you could say his demonstration was *relay* good. XD

[@del_v000]

You, you, you... Your videos are very good.

[@theobserver314]

Oh fuck! 🤣

[@akyogaclass3999]

But ur comment is not brilliant!

[@SP4CEBAR]

13:33 this is the most ElectroBoom-like edit ever

[@AdrianDowthwaite]

"Soot" even the closed captions read 'suit' which made me laugh. Thank you for entertaining, electrobooming and educating us.

[@Skullair313]

I heard there is a house dedicated to soot.

[@bmhater1283]

@@Skullair313 God rest Soothouse

[@mh6276]

Mehdi didn't say "suit", he said "soououoot".

[@chaplisimo]

"Can you imagine being entertained by learning?" Me watching ElectroBOOMs video: Yes, I can

[@falcy2889]

Man I love this dude but now I fell asleep in the middle of the video xd

[@KeithOlson]

Yes. I now know a *LOT* of things that I will never, never, *NEVER* do. :grin:

[@imgoingjoe2062]

LoL PRO

[@michealpersicko9531]

Electrobom, BigClive, lots of retro and modern computer tech channels, etc. I've learned more shit from youtube than actual science classes.

[@gyrgrls]

@@KeithOlson Shocking revelation, pal.

[@SlyPearTree]

"A switch goes in series with the power line, not parallel." I remember having to explain that to my dad once.

[@TheEdRiAx]

If not, it becomes a fuse that only works once

[@andreyrumming6842]

@@TheEdRiAx I mean.... that is how fuses work XD

[@bledlbledlbledl]

That reminds me of 8th-grade science class long ago, where during the chapter on electricity the students were told to connect a battery, a switch, and a light bulb, so that the switch would turn the bulb on and off. Several people had theirs hooked up so that the bulb was on when the switch was open, and off when the switch was closed. They ran their batteries down pretty quickly.

[@mananasi_ananas]

@@bledlbledlbledl And that's how a NOT gate works!

[@Bassotronics]

@@andreyrumming6842 There are fuses that can be reset.

[@riccardofranco6407]

I like that at this point you are more scared by the breaker popping than messing with 2000V open circuits

[@aradmnk1269]

For he is Mehdinvincible

[@themoonwolf7438]

2000V at no current... If it was at least 20mA, it would instantly kill him

[@proxyhx2075]

@@aradmnk1269 Yes

[@proxyhx2075]

@@themoonwolf7438 No current? It's a microwave transformer...

[@themoonwolf7438]

@@proxyhx2075 2000V applies no current man.. Otherwise this transformer would melt by a "current" as you speak

[@zweidönerhoch]

It's really scaring me how fast this "Relay-Day" turned into an "I'll build a Taser-Day". Again.

[@PowerShellWizard]

I'm an electrical engineer who did his concentration in power and had a dedicated class about protective relays. But even I learned a lot from this video! Keep up the great work Mehdi. I just wish I had a college professor like you

[@abrahamduran7736]

“And the breaker pop” *proceeds to clap* 😂 Thanks for the class about Relays Mehdi.

[@kolegapsasasiadaodstronysz3569]

mehdi

[@prathamjohari8301]

that clap made me smile

[@president8]

Thank you for watching the video Abraham

[@abrahamduran7736]

@@kolegapsasasiadaodstronysz3569 thanks!

[@sammanpro]

Shi h😂

[@tommyb1088]

I like how, even after having 2000 volts dropped on him, he still casually connects live wires to a spoon and touches it with his finger.

[@burtgummer9057]

Notice whenever this happens he's not touching anything else with his other hand. He's also isolated from the floor. Would only feel a tingle (I've tried it)...!

[@edherdman9973]

I keep waiting for him to push the back side of the spoon :P

[@deltab9768]

@justan idiot I believe the 2000v thing he's talking about was a while ago when he built a "Jacob's Ladder" using a microwave transformer. The device appeared to fall onto him while powered on and shocked him badly. I know he fakes shocks and other accidents to show potential mistakes you can make, but if that really happened the way it looked he's lucky to be alive. Those transformers can put out .5 A or more, they have enough voltage to force that through a human body, they can easily kill or burn tissue from the inside and they've claimed a number of lives.

[@deltab9768]

@justan idiot true.

[@Kalvinjj]

@@deltab9768 From what I remember from that video, the Jacob's ladder ended up shorting milliseconds before he touched it, probably what saved him. Then the fuse at the power outlet popped (or GFCI forgot what)

[@YaserFarid]

I'm an electronic engineer, trust me I learned a lot from this video... amazing work Mehdi!!!

[@ALuzionz]

Mehdi, you are an international treasure! I've been watching your videos for so long and these educational videos are so well made. Keep it up my dude! Love your work.

[@TeijeP77]

Everytime he uploads, I’m happy to know that he still lives lol

[@kazedayo4553]

Lmao

[@chicken_punk_pie]

That's really true Bout styropyro

[@ApusApus]

Even more so as styropyro only uploads like twice a year

[@GashimahironChl]

steve1989 from MREinfo offers the same experience, every time a new video of him pops up, he survived severe food poisoning.

[@TeijeP77]

that's legit

[@OneOfDisease]

Can't remember how my teacher originally explained relays in introduction to DC nearly 20 years ago, but I cannot imagine it was this good. Well done 👏!

[@pavletrnic1433]

“Dad why does the spoon taste funny?”

[@iamdave84]

Süt 😁

[@scottmestel6146]

There is no spoon

[@SultanGamer124_GD]

@ata yüksel I put cvm on it

[@celerywarrior6493]

Non-conductive spoons taste like burning.

[@zacharyj6465]

Because I cooked heroin in it

[@JossoJJossoJ]

9:02 " My man-made relay" *me looking at my 100% natural relay*

[@MrKakaofreak]

They call it evolution

[@huntinjet]

I came here to the comments to say this, but you beat me to it!

[@danewaccountttt6486]

Did you get your relay hanging from its tree like an apple or it grew to its toots, you know, like a potato?

[@knifekitty_ls]

well most relays nowadays are probably made by machines

[@grooveindia9989]

@@MrKakaofreak just backwoords

[@Loopooo45]

I came here again after electroboom said nobody watched this. I'm kind of a hero

[@nemk]

Thanks!

[@kamilb2322]

8:39 i like this little arc in this transformer when he uses it, it's always there

[@TheEngieTF2]

Mehdi: I received a shock! **smiles in happiness**

[@ppdan]

Minimum current thru a relay contact is also known as "wetting current". This is why you cannot use a 200A relay to reliably switch a low current circuit.

[@meinderthoving]

Thanks

[@idkanymore6897]

this man is the only man that i know who keeps (most of) his mistakes in the video and somehow manages to make it funny

[@JoshTyrReece]

Pssst here is a "secret"...he is an electrical engineer. He does it on purpose. That are jokes. He knows what he is doing and what would become to dangerous.

[@lolickypeepee23xdd6]

@@JoshTyrReece except for the jacobs ladder

[@ADPrevost21]

What made Michael Jordan a legend was consistently being great game after game. The same is true for ELECTROBOOM. Consistently great content. A true legend.

[@liveen]

I was 100% sure for so long that you wrote Jackson, not Jordan

[@nithilsushruthan3563]

When the world needed him the most he returned and also I have physics test tomorrow let's see how it goes Edit:- the test went well I got 43/50

[@agentnoxious4730]

Best of luck man 👍

[@AbdulRahman-lx6go]

All the best bro!! My best wishes are with you!! Do well!! ❤❤❤❤❤

[@attadarshimeshram7136]

Good luck Luigi

[@Bullfrogerwytsch]

Good luck.

[@bourbonbournvita]

Good Luck buddy!

[@atrumluminarium]

1:50 I love it how his first reaction to seeing a flash of light is to squint back as if an electric shock was coming 🤣

[@ViktorVano]

10:50 Many relays do have a coil with a solid metal core, which means that a high frequency PWM can create Eddy's current heating up the coil's magnetic core.

[@rajd33p42]

2:46 This sounds like Turn Indicators in car... So I think Turn Indicators uses the same mechanism...❤❤❤🔥🔥🔥😍😍😍

[@rajd33p42]

@Ryder Wilson Yeah Bro...

[@viditsinha7865]

8:56 he blew the electrons away

[@NickDiegs]

Mehdi I’m on my third masters course and have even used relays in my work. I learned a lot about relays in this video that I hadn’t learned in school or at work. I’m very excited for your next video. You are awesome and I love your videos!!

[@eramsorgr]

The happiness that he didn't get socked and the breaker worked at 9:18 is priceless

[@circuitsmith]

6:30 you can add a resistor. You can set resistor value to tailor the flyback voltage and release time.

[@Alexey0795]

6:05 My laptop charger makes this sound when the laptop goes into sleep mode. This sound is loud enough to prevent me from easily going into sleep mode myself.

[@alexwoodhead6471]

HORAY! YOU'RE BACK! also, whats going on with the "mould" effect! did you win!?!?!?!?!?!

[@flymac]

Couldn't say it better! Glad to have you back Mehdi :)

[@din5ixfg]

11:52 Some trivia I learned: gold is used in electronic devices like computers and phones because it doesn't oxidize and those devices want to use as low a voltage as possible. (Voltages that wouldn't be able to break through the oxidized layer on, say, copper.)

[@nadavleor]

3:07 when mehdi finds a new pain, and he love it.....

[@bourbonbournvita]

Pain fetish 😳

[@grooveindia9989]

Mehedi be like - EAU

[@spudkingxd4843]

@@bourbonbournvita tbf, he may be excited the fact that his vibranium skin has something he can test

[@Nsodnoajdjksl]

​@@bourbonbournvitaThe virgin "pain fetish 😳" VS the chad "masochist 🙄"

[@sstorholm]

I would really like to see Mehdi’s setup for keeping himself alive at the bench, it can’t just all be down to repetitive exposure giving him better electricity resistance.

[@davebutler3905]

Just found this channel... Absolutely hilarious at the same time as presenting the important concepts in a memorable way. My daughter did some electronics at college... It was unbearably dull... Till i told her how to make electrolytics explode... Then she went on a blowing things up crusade... Which was highly educational!?!? Pure genius !!!!

[@phillyphakename1255]

Nothing more educational than putting 10 watts through a 1/4 watt resistor. You could even say it's... illuminating! Ohms law, power law, discussions on thermal management and datasheet spects. Lots to be learned. An hour of intrigued lecturing, all stemming from a 4 cent resistor. Can't beat it.

[@justicedeath4035]

Was designing a relay-related(sounds weird) circuit to drive my shift gear simulator right now and saw this video. Great thanks about mentioning the flyback diode! Nearly forgot about that. The rest of this video helps a lot too!

[@mrbdwastaken]

relayted

[@CNoteZzz]

THANK YOU FOR THIS CONVENIENT TIME I'm studying for my finals and I'm having a nervous breakdown I almost cried THANKS AGAIN

[@dukati_erli8659]

good luck

[@CNoteZzz]

@@dukati_erli8659 thank you

[@CNoteZzz]

@Tomathy 🅥 not the time for ice cream man

[@gopalkrishnan9732]

@@CNoteZzz it's a bot

[@CNoteZzz]

@@gopalkrishnan9732 oh that's ok

[@parthjoshi536]

i sometimes dont understand what he says but i still watch cause I love The way he explains and demonstrates what he explains....!!!😂🤘

[@userPrehistoricman]

soot

[@davec8385]

This is how to do education on KZbin! Bite sized, interesting, and actually useful. Thanks for all of the great content

[@Meow-pu6be]

3:10 chinese boom

[@bassdrumflextime1253]

🤣

[@deadmemes4188]

4:08 a good ElectroBOOM video wouldn't be complete without some form of taser.

[@UncleGreg1]

It's amazing how I already know he's gonna get hurt before he touches something, this man is literally hurting himself so we can learn through evidence what not to do while messing with electricity, what a mad lad

[@blueshell4859]

This man is to electricity what Steve Irwin (RIP) was to crocodiles and other dangerous creatures 😅

[@perwestermark8920]

No. The the electricity needs a path to hurt. And there needs to be a reasonably low contact resistance. So if he is wearing rubber-soled shoes and does not touch anything else, the electricity does not have any path. And people with very thick skin on their fingers can also manage quite well because they have a high resistance in the skin. But the whole idea with these videos is to make it look like fat zaps. And the best part? The fools that thinks he's a fool and do not understand what he's doing. Soo funny comment threads that may result from it.

[@UncleGreg1]

@@perwestermark8920 if he were a fool, he would've already been dead. Didn't know that he dosen't really get hurt tho, but still what he does is amazing educational material

[@bergiov]

"It is *guaranteed* to break through the oxidized layer" - then is clearly surprised when it works

[@nomad91910]

12:06 "Hehehe Yeah Boy" 😂😂😂

[@damiencurrency15]

9:17 The… breaker popped. 👏 👏 👏 👏

[@BerenES]

I commented before the video was published. MAGIC

[@Dukefazon]

Time traveller!

[@ElectroBOOM]

Yeah, there is always that person asking why the comment is a day old!! PATREON ARMY!!

[@andreicristian6749]

hacker man

[@joshcanttakeajoke2853]

"I just didn't expect her to solve them faster than me" Man, you're the only one who thought that

[@benjaminoechsli1941]

#justdadthings

[@sensiblewheels]

4:23 Damn! Took Me a while to wrap my head around that. Only when I looked at the relay terminals a few frames earlier, did I understand. This was so cool!

[@waytogo_roblox]

Ye

[@thalasereg]

showed it to my father and he reacted with 'this is fake' and 'I knew that' until we hit the second half and he was hooked. as always a great video! we love your content and are looking forward to the next video

[@zeropointzero]

At 10:00 you mention release voltage. Can you do a video about peak-hold driver circuits, like ones used for fuel injectors?

[@absolutelyproprietary6896]

8:03 Thats why slapping something fixes it ᵒʳ ᵇʳᵉᵃᵏˢ ᶦᵗ ᵐᵒʳᵉ

[@iteratortv]

Just remembered how I created a similar "shocker" from the relay and the additional coil from the electric lighter when I was 10. Now I understand why I immediately liked this channel... and also why my finger twitches a bit randomly sometimes...

[@telephony]

I remember making a "zapper" using a relay when I was around 10 or 11 -- the inductive kick can be rather significant. 😮😲😮

[@Jako1987]

12:25 You should tell us what is that awesome relay! 😎

[@Qyxen]

9:11 When it started glowing like a lamp 😂😂😂 Edit: realized that the time it happened is 9:11 💀💀💀

[@White-sn3qw]

Why and how is this guy alive, i love it.

[@redsentinel8961]

You know that it's a great day when ElectroBoom uploads videos.

[@leviwilson701]

I remember watching Mehdi when I was 16 and thinking I could never figured anything like this out now I'm 19 and he's one of the main people who inspired me to take an electrician class

[@blueshell4859]

That's pretty dope 👍

[@zweidönerhoch]

But to be fair, electrics aint all that hard.

[@MadnessOnYoutube-c8t]

i learn more from this man than my whole entire years at school

[@anianshraj9582]

Netflix: Are you still watching? Meanwhile: 7:13

[@arthank1263]

I hope this man never ages. I wanna see ElectroBOOM content until the day I expire

[@yashvardhansagar5792]

love this part 6:13

[@ElectroProjects]

True

[@sonicunleashedfan124]

*6:14

[@Draganel87]

Maestro. This was the most incredible lesson about relays I have experience. 👌🏻🔥

[@Slowly_Going_Mad]

The sheer excitement of 'You see I can make a novelty zapper out of this.' had me rolling although I can't say much as I'm about the same way.

[@awsome1010101]

Just wanted to share that around the 4:30 mark, DPW was checking the power through my barracks building. The lights came on and it felt kind of surreal that I'm hearing electrical buzzing in a video and lights in my room start freaking out.

[@hollowinside66]

I am filled with joy every time I see a new video is out. You are exactly what the world needs right now I enjoy every moment of every video

[@valleyard8674]

For real though, I really freaking like how he can be really fucking smart, and a chaotic dumbass in a flip of a switch, mix that with him forgetting some stuff that when he remembers looks obvious, an you have a amazing channel with crazy good videos

[@gibsonanthony4679]

Watching this man from 1 year still I am not bored Good

[@ArmitageShanksMC]

Thank you for RELAYing this information in such a RELAYable fashion! I RELAY on you to impart this kind of knowledge, and I can now go and RELAYx!

[@ElectroProjects]

😀

[@beetlenut6980]

Yes Mr.Boom is very RELAYiable

[@nachiketadeshmukh8444]

I have done many hobby projects with relays but I also learned a thing or two from this video - like release voltage and minimum operating voltage, etc. Thanks, Mehdi!

[@AmelityshTV]

It's always nice to search for relay videos, only to realise that your favourite electronics youtuber has already done a video on it. Thanks Mehdi

[@ScottsSynthStuff]

Only things I would add to cover in future are resistive vs inductive loads, and how to deal with hysteresis/debounce strategies for circuits sensitive to rapid transients. I love relays! But I love solid state relays more.

[@jokubasvanagas3174]

How is your comment from 13 hours ago if the video came out 7 minutes ago?

[@ScottsSynthStuff]

@@jokubasvanagas3174 Patreon members get videos early

[@jokubasvanagas3174]

@@ScottsSynthStuff Oh ok

[@Connie_cpu]

Solid State Relays are amazing. I have two of them controlling my attic fans from an ESP8266 chip

[@TWX1138]

4:03 Mehdi's reaction when he gets shocked without predicting it coming.

[@sarmadrafique4472]

Yayyyy! Mehdi uploads a video on my Birthday.. Feeling extra special now. :)

[@blkdog40]

Happy birthday!

[@raedq]

Honestly, it was nice watching Mehdi in this video! Your face showed how much he enjoyed making this one!

[@nohbudinose]

Feels like Dave got your attention with his Back EMF episode.

[@wiredforstereo]

Patron represent! I would have liked to see some of those maximum parameters tested. Push a thousand amps through that thing. BURN IT!!!

[@Shortsnips1]

Bro he already did it

[@WagTsX]

I've discovered that relays give shock when powered off in the past by own experience. Same apply to solenoid valves and other similar stuff. Also, quite a crap of unreliable technology but still very widely used due to it's unique properties.

[@AlexBesogonov]

Relays are pretty reliable if used correctly.

[@pi-tech1817]

Yes I got many times shicked

[@koitorob]

Never had one from a relay. Capacitors... They can bite days after use, as i found out when i grabbed a used one from my compressor run/start capacitor spares parts box

[@userPrehistoricman]

I don't buy it. They can't stay charged like a capacitor can.

[@nawsstars8874]

Hello my friend, I have seen all the videos you publish, but I did not find a single video explaining how to reduce static voltage. Please put a video on how to reduce static voltage. Thank you

[@ornessarhithfaeron3576]

At university, the class where we would make industrial circuits just with relays and motors was definitely one of my favourite classes :)

[@Dalorath]

@1:00 You welded it LMAO... You could possibly use Electro magnets to activate or deactivate this sort of switch also :-D

[@nonstopdude]

I like how mehdi went with the "DONT FORGET THE SPOON.. ITS THE MOST IMPORTANT PART" in his free energy video to reality XD

[@atharvashinde1757]

*agrees*

[@jayeshb1212]

I just subscribed your channel sir And i watch your all short videos❤ you giveus knowledg with so much easy way and with some funny moments(but those funny moments are hurt you much times😔)

[@extoprak]

When did the university project, I wrote not only the good results but also the failures and how it is fixed. This guy does not make these mistake as a mistake, he wants to show them so you remember better. Of course if you put that diode yourself in wrong polarity you will never forget.

[@Unfinished80]

Thanks! Very enjoyable! I hoped there might be a mention about the relay ratings being for purely resistive loads. You have to derate them for driving inductive loads such as a solenoid. I hope that doesn't sound bad. I still get equipment to this day that I have to add arc suppressors to manually. Thanks again!

[@agentnoxious4730]

@@itsmoam Patreon i believe

[@regular-joe]

@@itsmoam Patreon supporters get early access to videos.

[@Unfinished80]

@@itsmoam patreon early access

[@mickwolf1077]

5:38 RIP little Diode.

[@autobotoctolingthomasho3362]

0:14 NEVER FORGET TO SPOON!!!!

[@Notfunnyguy123]

Do you mean science spoon?

[@nalorin]

I never knew relays had so much to learn about them! Thanks for this!

[@Tactical_Assault_Pelican]

Connect an 'operation' game board to a microwave high voltage generator so if you touch the metal with an exposed and disconnected metal hook you get a shock

[@singhsushant1225]

I'm in Class 10th and I studied the electricity chapter only with your channel Thank You Sir 🙏

[@tanaymehta4188]

Why do feel like mehdi got some Gujarati vibe at 2:15🤣🤣