Electromotive Force of a Battery, Internal Resistance and Terminal Voltage

[@TheOrganicChemistryTutor]

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as someone who has a confusing physics teacher you have no idea how clear of an explainer you are. Bravo

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I understood perfectly. You are the best teacher I ever found in physics.

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The first 20 seconds cleared up quite a lot for me.

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Come to my graduation

[@Aalijah_Matyevna]

Congrats. I am struggling so much as I can't find a physics teacher of my choice. All of them are bad. They either teach wrong or don't have a good attitude for communicating with students. For now, I am surviving with these online videos. I am rlly frustrated and worried about my exms.

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@@Aalijah_Matyevna hope you cope better!

[@Aalijah_Matyevna]

@@Googleismyfriend1 thank you. I gave my physics exm 2 days ago. I did get the questions but I got nervous and messed up 10 marks almost.

[@Googleismyfriend1]

@@Aalijah_Matyevna been there, hated it. But we learn from our mistakes, next time you'll know what not to do and what to do :)

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absolute masterpiece. Best explaination of the 10 I saw.

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Did you pass the exam dude?

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@@gautamichaudhary7313i hope he did, i hope anyone and everyone who has a test passes

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Man....gotta thank you in person but anyway.....now I feel confident and looking forward for my final exam. Gotta say it, his explainations are way better than that of my teachers', this guy should write a book.👑🙏

[@EmmanuelRume]

Best explanation ever about emf and potential difference at the same time

[@johnholme783]

Simple no nonsense explanation. Thank you.

[@The053199]

Thank you so much for clearing up EMF. I couldnt for the life of me understand internal resistance because my professor spent the entire time teaching us how to derive the super drawn out formulas and then tried to cover all of circuit 1 in the span of an hour. And hes a physics 2 professor. Internal resistance is basically like resistor being akin to a rope being pulled. The stronger the resistor the more it pulls out of the battery. The weaker the resistor the more the battery pulls back. In a sense lol

[@nadiraakhter532]

Hi, I'm from Bangladesh. Unlike most others I understand your teaching concept easily and perfectly

[@asayilethindwa3209]

Someone asked me who's organic chemistry tutor is? I said, "the wisest man on KZbin" 😂

[@valdachef]

About to start my exam on electric science exam thank you

[@rivinhewage1339]

TYSM I understand perfectly.. now i dont have to show up to my physics class where my teacher is constantly tryna POISON ME (Yes I'm serious)

[@noiiiiiiiiiiiii]

It was really helpful. Thank you so much. But a liitle about how is emf generated would make it more clear 😊😊

[@PauldyKelly-y8y]

You best of the best ❤❤

[@mwangimacharia8359]

waaah...gud explanation..kesho nko na exam

[@emmanuelmeshuko1416]

Dancan Macharia wp unasoma

[@oliviagrace8405]

Life saver!

[@filipzupa1225]

10:00 Could someone explain? I still don’t see why an increase in electricity would ever lead to a reduction of voltage. Aren’t those two directly proportional since U = I x R?

[@chenyu0o]

bro casually saved my grades

[@zakirsaifullah3431]

this is the best lecture on EMF

[@orangecaprinun]

dude if i dont understand your tutorial i dont think ill ever do

[@ahilsarang2918]

Very good video, but i belive listening to the video in 1.25 playback speed will be the perfect speed.

[@thameraziz7902]

Thank you very much 💖😊😊

[@ksdnsdkumar1375]

@2:26 So my hand feel more shock at A then B?

[@leonardodavinci4978]

watching this during my test

[@somnathpaul1468]

Sir, could you please explain the emf now in terms of flow of electron rather than current? Thank you, it was a great explanation.😊

[@myburntfruitloop1853]

Within the emf device (in this case the battery), positive charge carriers flow from the negative terminal of the battery (where there is lower electric potential) to the positive terminal (where there is a higher electric potential). The charge carriers flow in the direction of the emf arrow in a circuit diagram and in the case of an electron, the direction will be from the positive terminal to the negative terminal (because the electron is a negative charge carrier). The motion of the charge carriers is opposite that of which they would have due to an electric field between the two terminals. I hope that helps :)

[@somnathpaul1468]

@@myburntfruitloop1853 thank you.😊

[@swapnasaha798]

@@myburntfruitloop1853 yea you r a lifesaver too

[@HansensUniverseT-A]

@@myburntfruitloop1853 An electron flows from the negative terminal towards the positive terminal in a circuit...

[@SanjaySingh-uu8zf]

if the coventianal current flows opposite to the electro movement then when electrons move from high to low electric potential energy then the current flows from low to high potential??

[@meritenqu7204]

Thank you so much.

[@donshin9218]

Why don't highschool teachers teach like him bruh I was half trippin for 2 weeks straight till I randomly saw this video

[@NovaWarrior77]

SO AMAZING SIR!!!

[@Maria38315]

Thumbs up! So well explained.

[@pam9451]

Thnks a lot

[@zouraizkhan2467]

yu do realize how many people are indebted to u

[@equinoxxx5453]

Why positive side has high potential?

[@texastexas4541]

Please clarify the following. You say electrons move from positive terminal to negative terminal and the battery adds energy to these electrons (see your arrows). But electrons MUST travel from negative to positive terminal.....that is the only way they can go. NOTHING is moving from positive to negative terminal. Electrons are produced by oxidation reactions at the negative terminal and they get absorbed by reduction at positive terminal. New electrons are produced again and the whole thing happens again. I am confused by your description. Also, PLEASE tell me which way is the electrical vector pointing.

[@fatimaalfehaid]

Thank youu✨!!

[@jefrempizz65]

Can voltage be same as EMF sometimes ?

[@5staryzzz]

No, EMF and Voltage are different. Differences Between EMF and Voltage : The EMF is the measure of energy supply to each coulomb of charge, whereas the voltage is the energy use by one coulomb of charge to move from one point to another. The EMF is represented by the ε whereas the symbolic representation of the voltage is V. The EMF is measured between the endpoint of the source, when no current flow through it, whereas, the voltage is measured between any two points of the closed circuit. The EMF is generated by the electrochemical cell, dynamo, photodiodes, etc., whereas the voltage is caused by the electric and magnetic field. But they have the same SI unit: Volts

[@name-rg4kw]

@@5staryzzz is the work done to raise to potential energy of the electrons the result of moving the negative charges against the eletrostatic force field of a positive charge which wants to keep the negative charges close to it, seeing as positive charges attract negative charges?

[@69k_90]

my physics teacher is fucking horrible thank you for this

[@name-rg4kw]

is the work done to raise to potential energy of the electrons the result of moving the negative charges against the eletrostatic force field of a positive charge which wants to

[@abdulbarihussain2813]

How is the total resistance sum of the two resistors ? They are parallel to each other shouldn't they be add differently...?

[@debrajdas8591]

They aren't parallel.

[@ghostfromcod7752]

@@debrajdas8591 ya

[@jeremykemp3782]

why would the internal resistance in a battery increase? And what determines the internal resistance of a battery in the first place?

[@reemibrahim4847]

Can I put the internal resistor parallel to the battery in some cases?

[@mr.knowitall5019]

The internal resistor is inside the battery so you can't do that. Unless you have a different type of battery which is not in my syllabus.

[@fatmaozgul3150]

16:00 for my ia

[@shahkaralam8015]

thnkyou

[@hasanainkitchen1442]

sir i sae 3 ads for you

[@Diariis]

Ion but guys please help me out, esp u dear tutor; When I use V=E-Ir, my answer comes out differently from when I use V=IR to calculate the terminal voltage..😐😐

[@ghostfromcod7752]

bro calculate the terminal voltage

[@__Muslimah__m]

how you are so incredible✨✨

[@jasminekumar3830]

What is RL

[@samirsha6762]

Resistance load

[@cultistofdarkness1837]

12->6->0 volts wha? I'm now even more confused how does that work?

[@spectrum5156]

I think it was exaggerated to make us understand

[@shankarraknahs1821]

💗

[@arn7898]

Sir please try to speak louder

[@AS-qi2lq]

you can use headphones if you have.

[@idk-dr7fo]

thanks but i understood nothing lmao going to watch ur other video about this

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26th viewer & 1st liker

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*Organic chemistry

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i really love ur videos but ur mic... gives me a bit of a headache. Im so sorry to say this. But is there anyway u can change the settings on ur mic. I know beggars cant be choosers but i thought i should point this out

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YOU ARE GOD!!!

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i dont like science :(

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Then why are u here

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I love science but science doesn't seem to love me

[@Aalijah_Matyevna]

Just pass ur tests then. After that study business or humanities or literature whatever u like.

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i like science when its easy and fun but classical physics is neither

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Speak louder 😀

[@animer4947]

Why doesn’t my teacher explain like this And my book doesn’t make that much sense either