measuring the energy of the very small

[@nahiyanm225]

The fact that you wore a shirt with mirrored writing on it is amazing attention to detail oh my Great video!

[@abhinavgupta9638]

no one here in India taught me this concept this clearly in my intermediate school (not even Unacademy JEE KZbin channel). I'm in grade 12th & I love to watch your lecs for my exams. Thankyou so much sir...

[@abhaykashyap4809]

Same 🙋😅

[@granny5652]

.23 electrovolteos

[@scienceislove2014]

My mind's blown away... Thanks a lot for this amazing explanation

[@MrAnthonyxyz]

It's tragic that you don't have a bigger audience and more Patreon supporters. This channel has some of the best explanations I've seen.

[@PhysicsHigh]

Thanks George for your vote of support. Slowly growing. I do hope you can share to help me grow.

[@michaelclarke5232]

@@PhysicsHigh I agree. Your explanations are precise and easy to follow. Great work and please keep it up.

[@PhysicsHigh]

Thankyou.

[@antonbashkin6706]

Really wonderful thank you!

[@fireball43]

.23 electron volts

[@Aditya-ux7zu]

such a flawless explanantion

[@alexandrakemendy2793]

Very clearly explained! Thanks!

[@Tay-ky3fi]

Teacher: Okay so now I'm going to tell you what an electron volt is.. we start, of course, with an electron which is... Columb... Me: I think I need to go back to 4th grade

[@malikyawarshafi1641]

Very right bro and same here ..

[@isaacmcadams8334]

Thank you so much, starting out as a nuclear engineer and come from a very small school so I have to pick up a lot of things on my own. Very helpful!

[@almirbravin1]

Very elucidative, thanks

[@bishalsarkar73]

great explanation

[@vedashreer5854]

very well explained

[@PhysicsHigh]

Thanks

[@eriknunezalbermann9993]

perfectly explained, thank you(:

[@disafear3674]

Very helpful to a chemist who has forgotten all of his high school physics

[@PhysicsHigh]

Glad it helped

[@satyamevjayate786]

Well done

[@alfarabi4128]

It was helpful; thank you very much

[@officeforever]

It was simple and helpful, thank you.

[@PhysicsHigh]

You’re welcome

[@mull5953]

Great video

[@PhysicsHigh]

Thanks

[@moodleblitz]

he is writing backwards... respect.

[@stancartmankenny]

Or the video is flipped, in which case his shirt must also be flipped. If he's righthanded, then the video must be flipped. Or maybe he's drawing on a mirror, but then, where is the camera?

[@deeperlayer]

@@stancartmankenny video flipped tshirt printed backwards for these videos

[@int16_t]

He's writing on a clear glass.

[@deeperlayer]

@@int16_t your are either indian, iranian or pakistani

[@int16_t]

@@deeperlayer How so?

[@BrianFedirko]

W=FS is not taking into account the speed or acceleration of doing so to that point. the concept is missing the time domain...? am I correct in stating that?

[@maisan6234]

amazing video

[@PhysicsHigh]

Thanks!

[@nidhishkumar8744]

helped me😀

[@singh__n_s]

Love from India🇮🇳

[@russchadwell]

Same set up done millions of miles away from any planet and the value of g found in mgh? In other words, we started by basically hanging an electron in a gravitational field and then built an electric field around it such that it lifted the electron. Had the electron been hanging in free space (no gravitational field to speak of) and then we moved the electron using the one volt set up, in the absence of the value of g this time, would the final value be much different? Would any difference be of comcern?

[@harshpreetsingh1228]

Nicely explained!

[@lonelyberg1808]

.23 electron volt

[@tukendrakulkarni3849]

best luck for your youtube career

[@thevikingwarrior]

You do realise that as he is on the other side of that transperant screen; everything he is writting is backwards!

[@rupalprajapati6827]

Great sir

[@timmac700]

Thanks Paul really helpful

[@oonniiigg]

excellent material Thank you Paul

[@PhysicsHigh]

thanks Gino

[@angelineclarissa]

Thankyou Sir! #RESPECT

[@ThysRoes]

Why do electrons flow from positive to negative here? Don't the electrons want to flow from negative to positive?

[@hizon525]

Electrical field lines go in opposite direction of electron. This is because we use conventional current in circuits ( + to - ) instead of electron flow ( - to + ), so we express field lines in the same way. This is just arbitrary. because in the past, when we didn’t know much about particles and were just figuring out circuitry , we used conventional current of + to -

[@quantum-inc]

irrespective of d between the conductive plates surfaces a charge o 1 volt is still one volt

[@acluster3411]

A perfect definition of voltage

[@j7ndominica051]

This unit confused me. It sounds like a tiny fraction of a volt. Now is clear. How do people write on the screen? Do they mirror the picture including the shirt in this case? And how does the marker result in enough shadow to be captured on video?

[@hamelillah7545]

the best 1ev

[@samruts5965]

Yes it was helpful.... Thank you!!!

[@debasishnandi6545]

Speciality of this video :-He is writing in reverse.

[@PhysicsHigh]

I did a lot of practice 🤓

[@jose88eric]

Amazing! Thanks

[@rezalashani4005]

Hello thanks for clear explaining the eV. I have a question: you told (in 6':46") that by changing the distance between two plates the voltage changes but as I understand "V" is constant and "E" should change instead by changing "d". Am I right?

[@naminduyasanjith8111]

Thanks

[@Arshar]

Camera behind glass and recording mirrored correct ?

[@kisho2679]

How much electronvolt eV is energy of suborbitals "s p d f" of atom?

[@PhysicsHigh]

I don’t know because it varies for different atoms

[@edis9493]

Thank you

[@PhysicsHigh]

Pleasure. Hope it helped

[@WhydYouChangeMyHandle]

So if it has to do with the energy needed to move the electron… if you have 0eV, does that mean the electron “moves freely” like in a metallic material?

[@hizon525]

No, eV is just a way of expressing energy with relation to electrons If an electron (or any object with mass) is moving, it is experiencing kinetic energy. Also in a metal, there are charges from the positive metal ions, so there is still electrical fields

[@WhydYouChangeMyHandle]

@@hizon525 Hmm, okay. How would you best describe/characterize something with 0eV?

[@hizon525]

@@WhydYouChangeMyHandle maybe a system with just one single charge? I would say it's better to think of eV as a unit for energy for things that are really small

[@stancartmankenny]

I've heard electron volts also used to describe mass, e.g., when the higgs boson was discovered, they reported its mass in electron volts instead of, you know, metric tonnes. What is the reasoning behind that?

[@PhysicsHigh]

I have a video on that too. Check out kzbin.info/www/bejne/qpelYp57i5Z3p6M&feature=share

[@stancartmankenny]

@@PhysicsHigh funny... I guess you anticipated my question exactly, even down to the higgs boson question!

[@willbyers47]

Excellent💜🔥

[@PhysicsHigh]

Glad it helped

[@zulqarnaingama8415]

Dear sir the force cant be equal to weight because you have to provide a force more than its weight to move the object in the opposite direction of its weight.

[@bapibiswas3501]

THANK U

[@deadeye_john]

Wait, does this also mean that one Joule is 1.6 10 to the 19th electron volts?

[@TechnoSan09]

It's (1÷1.6) ×10^19 eV

[@satyamevjayate786]

Yes

[@Govstuff137]

Nope. Not answering my question. What is a electron volt?

[@muralidharareddy2096]

One doubt!. 1ev is the amount of work done in moving 1 electron through a potential difference of 1v. But how much distance? Why distance was not mentioned?

[@PhysicsHigh]

Because distance changes the voltage. V=Ed

[@muralidharareddy2096]

@@PhysicsHigh let us suppose a fixed potential difference of 1v is applied between the two plates of distance d. Then move an electron in between these 2 plates of 1v fixed pd. Now you are doing work to move the electron in a potential difference of 1v= 1ev. But what about the distance d. Can it be any amount? Why d is not coming in to the picture here. It is only 1e and 1v pd.

[@casualfreediving8780]

@@muralidharareddy2096 I believe that the voltage is the potential energy difference (U = E/Q), so when the electron has moved over the distance in between it now has that much lower potential energy via U = E/Q, but that energy has now gone into kinetic energy so the electron have accelerated up to a certain velocity, so the final velocity is dependent on the voltage difference between the two points but independent of the actual distance in between. Edit: fixed some grammatical errors

[@tashadurrahman]

04:38 Why did you take the charge of electron as positive? Please answer my doubt

[@TechnoSan09]

Doesn't matter here

[@devaroraa]

We just need the magnitude

[@hamelillah7545]

q positive or négative ( w=q*v)

[@thaneindranaidu8688]

Someone pleaseee?

[@felixcuevas1342]

Thank god you’re not my physics professor 👎🏼

[@LeBator]

I'm sorry but I didn't understand a word you said. All I know is that you're the backwards writing World Champion! 🤪

[@noveralls6157]

.23 electron volts

[@waliddfrog5353]

.23 electron volts

[@s.i.h8645]

.23 electron volts