Solenoids & Relays

[@gamingguard1an167]

Great video. I’ve been using solenoids relays and valves for a while but I never understood the science behind them ..5 minutes later and now I’m a pro 🤙

[@okusitinotahitua1020]

wowwwwwww..... i have been search for a cheap home-made relay in order to understand the way its work.. and i finally get this from a smart but easy explanation...thank you sir...

[@kirkprospector4958]

R.I.P. Mr. Campbell. Thank you for all this information.

[@mahmoudsaber5250]

Just wanna say that you are doing a great job, Sir

[@captainprototype187]

That stripped relay has a beautiful look to it!

[@lejink]

Your videos are great, I really enjoy them!

[@samrega9842]

Excellent!!! You broke it down to the bare bone principle clearly. Thank you.

[@dkjawahar-techexpt671]

Really wonderful, thanks for the information and energy you have utilised to share with all of us. Nice explanation. Thanks from Jawaharlal Bharat INDIA 🙏

[@projectdiamonds1]

I have an electric exam this afternoon and this really helped I wasn't sure about how in a relay the two connections were connected this really helped thank you

[@mrmatias2618]

Indeed, you are gifted to teach. Greeting from Angola.

[@sporty17sahil]

That was neatly explained with decent demonstrations. Thanks.

[@stezo15]

Thanks for the video! It was helpful for me to understand how my car electrics work!

[@labibbidabibbadum]

Lovely descriptions and clear explanations. Thank you.

[@theblukatlife]

I love your videos. Amazing teacher

[@muhammadhussainsarhandi9928]

Sir you are really awesome, you are a great teacher, you explain everything conceptually, your all videos are mind blowing, all students need teachers like you, we love you sir,

[@garydunken7934]

Long time, no see! Keep them coming.

[@scottspitler1443]

Love mechanics, but electrical is sometimes a mystery to me. Need to add a relay between my solenoid and starter on a Harley. You’ve made the task logical and understandable. Thanks.

[@amandafalke7670]

Nice work! Simple and old school.

[@JohnnyBravoAfterPic]

You are a great teacher!

[@cindyandjoey]

Hi, one solenoid in a home that you forgot to mention is the common doorbell chime, which normally gets its power from a transformer (usually located attached to the breaker box) that converts 120 V AC to the 16 V AC needed to run the mechanical doorbell solenoids. When the doorbell (a simple switch) is pressed, the circuit is closed, and current is sent through the coil, retracting the metal plunger and causing it to strike the "DING" chime plate. When the doorbell is released by the person's finger, the circuit opens again, and a spring snaps the plunger back, where it hits the opposite "DONG" chime plate. (The rear doorbell, which has its own solenoid, simply blocks the second strike with a rubber stopper, so you get only the "DING" chime.) You have demonstrated that DC voltage CAN, in fact, be used to run a solenoid circuit. (I had read that this was true, but had been told by various doorbell sales people that -- NO NO, it must be AC.) When I connected up a 9-volt battery, however, the plunger moved a wimpy fraction of an inch, and did not strike the chime plate. Why does your 6 V DC circuit work, but my 9 volt DC circuit didn't? (Assuming the common nail and the metal plunger are somewhat similar.) Does it have to do with a difference in current supplied by your 4 AA's in series versus one 9 volt? And how could I, just for proof of concept, actually run my doorbell off of some batteries? (I just hate it when someone tells me something "can't be done.")

[@IMFDB]

Basically I was taught in summary a relay is a switch, controlled by a low amperage signal wire to control a large amperage circuit. What is the purpose? In my opinion to reduce the amount of costs and inefficiency or wiring. If relays didn't exists you would have to run a wire the size of a battery cable to start your car too the ignition switch. High amperage = big wire, low amperage = small wire.

[@NM-wd7kx]

if you are controlling a 12v system using a 3.3-5v Arduino then you will find a use fast.

[@michaeloconnor4247]

Well explained.

[@PacoOtis]

Well done! Thanks for the informational video!

[@SavedByFaithInJesus]

Great video!! Thank you. I learned a lot today.

[@Good-Enuff-Garage]

fantastic presentation and explanation

[@GoliathGunner]

Very informative. Thank you.

[@johnsamuel2013]

superb and clearly explained. thanks

[@iperpituallocomotionz7751]

you don't know how much I love you❤

[@ernestguevara5968]

Excellent video!

[@nicolascarrascodiaz9787]

Very well explained and very usefull for me. i'm trying to use a solenoid as a trigger for the pen of a DIY plotter . Thanks a lot.

[@MH-oc4de]

That was super informative. Thanks!

[@NilupulMalinda]

Thanks a lot! This video explains a lot.

[@asingh1519]

Well made informational video. Good job!

[@yekutielbenheshel354]

Excellent! Thank you!

[@ryanbaderr2982]

i love your videos , you taught me a lot of things thanks a lot sir

[@andreas3861]

That was very well explained! Thankyou!

[@AlamgirHossain-nb4vf]

Excellent video,thank you.

[@ncameron7]

Great Video!

[@ryangarrison7088]

Your videos are great!

[@CraigMansfield]

I like your style. Thank you

[@staror890]

great video , i learned alot

[@AVFinfo]

Thanks! It is beatiful video!

[@itolo]

brilliant as usual!

[@nasirkhan2875]

Good explaination sir

[@zdp-189]

Very cool, the power of EMFs

[@twistedyogert]

What about transistors? Do they act like relays?

[@syedmunafahmed04]

your voice is so good!

[@stellarv5689]

Thank you 🙌

[@ishaqzakaria2669]

Very interesting and educative

[@kelvinr2369]

Thank you so much for this information.

[@markbess4562]

great videos. I use them in my class.

[@henry2008kim]

+Mark Bess Um, I have a question Mr. Bess! In the video a solenoid is described to have many applications when swift motion is required. But isn't a solenoid basically a short circuit? How would one design a solenoid that is energy efficient?

[@bharathkotharu9757]

Great Job.

[@rogertopful]

You said that the coil in a solenoid gets hot. How do car relays stay on and not cook and melt?

[@Rossvallance]

They don't stay on running current longer than designed. Most will have a switch lock, eg the door lock, relati switches between lock or unlock. Or as for your indicators, the flash relay will rarely run longer than designed, and even then the current passing is minimal. The gentleman who uploaded ran what looks like 4 X AA batteries at 6v total and a fair current ( maybe two amp) which is 12 watts through a thin wire, the resistance isn't high in copper but it still gets h o tt hot with the flow of current needed to lift the approximate 15 g nail with ample force again earth gravity :). ... Science bi*** , jokes.

[@ellamayveloso5799]

solenoids do get hot if power stays on like an RC actuator

[@Rossvallance]

but they are designed to only pass current whilst they are on, which is the time taken to activate the switch.

[@fabioferra986]

very good video

[@chaknithbin6322]

i see your coil work very well

[@eduardocaballero5990]

muy bueno.. very nice👍

[@Sick666Minded]

Thank you

[@mirabilo]

What governs the direction of the nail's movement?

[@Dg-zj6jo]

how can i use a rely for a long time so enagized for hrs at a time do i need a spectal rely please

[@sathamhussain6490]

Thank you dear

[@luqmanrashid1651]

i tried to make one like this. i used steel nails with 9V battery. but it didnt work. the pulling power was too weak

[@mixmike6]

I love your videos!! Please keep them coming. What's the title of the song in the background of all your videos ?

[@belajarbarengkaksiti]

I want to ask for a series of solenoid valves connected to the relay

[@12Hydrocarbon]

Thank you Sir!

[@madhawapriyashantha3722]

can we increase the physical power by using neodymium magnetic bar instead of metal nail ???

[@aleksandersats9577]

+madhawa priyashantha yes you can because magnets have already gravity with metal and the coil generates to gravity so yeah aren you smart enuagh for that

[@ellamayveloso5799]

like an actuator

[@DiscoverMVP]

Nice!

[@loiseniitaashivudhi1913]

what was the current going through the solenoid? mine seems to be beyond 3A ):

[@emadabuhagag222]

That's beauty

[@_samyakambulkar4959]

Is this relay will works on 9volts battery 🔋

[@jatinbhatt7826]

Why we use relays to control the motor , even it can be done by a simple ordinary switch ????

[@kumarwork]

relays are electromagnetic switches while the switches you are talking about are mechanical.

[@ulissessou]

please , what is the diameter of the copper wire used in the experiment ?

[@systemsandlogistics]

*when he said, ask your science teacher or a knowledgeable adult 😭🤣

[@curiosity551]

i liked it.

[@vishumishra0]

very good

[@MetalHeadJagger]

yessss

[@ashimasaxena6289]

brilliance

[@chaknithbin6322]

dear sir could you pls tell me how the coil work.....the coil that i made is not working

[@tuskiomisham]

make sure your wire is magnet wire, found here: www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=magnet+wire

[@vaibhavpatil2611]

pls can anyone give link to any information on safety measures if any

[@wagnernascimentoesilva5883]

made in Brazil!

[@vaibhavpatil2611]

what do you mean by magnet wire?

[@Mazekwon]

It is a wire with a coating so that it can be wrapped tightly to make a good magnetic field.

[@uss_nevada5831]

I have 2 solenoid. From sony radio autoplay decoder.

[@marathielectricalguru2108]

How is work on dc system 🤔

[@asdsd7386]

Interesting

[@dylxnchn]

Dosn't it heat up?

[@KKasdqwerzxy]

Wow

[@DodongWerkzPh]

I think solinoids and coils is thesame?

[@vaibhavpatil2611]

yes

[@SLUGTHUG]

Yes, they're both inductors

[@rossfalco9896]

+Engineer mapmaker909 that's not correct. A solenoid is a coil of wire with many turns. A coil is strictly one rotation of a wire, however a solenoid would not be formed until a significant number of turns have been made.

[@picketf]

solenoids are coils that contract an object through an electromagnetic field. Coils however have many different functions and uses not limited to solenoids. For instance a typical electromotor has coils that rotate in an electrically charged tunnel. In bigger motors these coils are shielded through copper plates that also act as mechanical bearings to reduce friction in the shaft. On smaller electromotors for RC toys these plates are often missing and bare coil spools can be found in the center of the motor. Coils can also be used as induction coils to drive up the higher currents needed by camera flashlights.

[@aichediop7297]

😊😊😊😊😊😊😊😊😊😊😊😊

[@SVENY]

Thunderbolt 1003T Fire Hi Lo wailing? Anyone?

[@ozzie_goat]

For starters, they don't make a 1003T, but yes. It has solenoids as well.

[@421sap]

In Jesus' Name, Amen ✨✝️