We will explore what causes things to heat up when electricity runs through them. We will also learn how to calculate the amount of heat produced per second due to electricity.
OMG ....sir U are great Aap bohot accha samjhate ho..really sir..bohat jyada...bohot bohot bohot jyada acha batate ho...maine abhi yani aaj apka pehla video dekha..to mujhe bohot accha laga maine 1 minute ke andar hi aapke Chanel ko sabscribe kar liya really sir...you are superb , amaging,apic ,etc etc
This is the very best video I got on yt...... Even he is far more better than the most popular or viewed channel of Yt regarding science..... I got to understand this topic after 1 year.....🙃🙃🙂
The origin of electrical engineering is from micro & nano level mechanical engineering. Random motion, collision, driving force to transfer electrons in ordered motion. Energy dissipation. These two branches shares hardcore brotherhood ❤️.
U r the best physics teacher I have ever seen I praise the one who has made u and your voice is really fantastic and magical LOL LOTS OF LOVE❤️❤️❤️❤️ 🙏🤠
I have a question Do electrons actually collide with atoms as atoms are just clouds of electrons So, when it collide, it will collide with other electrons Isn't it the situation when heat produced?? I 'm confused as if it collide with atom then resistivity of silver must be more as compare to copper as it has large atom and so the nucleus therefore collision must be more and as well as resistivity? Please answer! Confused🤔
Sir , wire me current flow kr rha ho jiske karan heat bhi generate ho rhi hai to electric energy loss hogi agar us wire ki cooling nentain kre to electric energy ka loss kam kr sakte hai kya
Sir I was trying to calculate heat dissipation of a lithium ion cell having capacity of 3.2Ah and open circuit voltage 3.7V and IR 35 mili Ohm. Heat dissipation - H = VxIxt = 3.7*3.2*1 = 11.84 W Heat dissipation - H = IxIxRxt = 3.2*3.2*(35/1000)*1 = 0.3584 W Mili ohm to Ohm conversion (35/1000)* Can you please suggest me why I am getting different values here. If we have 10 Cell in parallel and 12 in series then the difference will be more. Can you please help me in the same.
He is talking about the free electrons available in the material, not the bounded one... In a conductor, there are more free electrons, so we have an excellent current flow, but in the case of insulator we have few free electrons
No...I mean The electrons which are out of the bondage of nuclear force, i.e. attractive force between the electron and nucleus... Generally, in conductors, the valance electrons very loosely held and they are free from the bondage even at room temperature and hence called free electron
First thing H is not power... Secondly it depends on the constant of proportionality. You can write the two things by using a different constant of proportionality
Bruh watch previous video of this series i.e. ' graph video of resistance' .....resistance is not the thing which is relating to heat directly or inversly , resistance is a proportionality constant....repeat....its a constant
@@s..9870 electron atom k andar nhi wo energy levels yani shell m hote h aur sabse outermost shell wale electron ko agar thodi si bhi energy mile to wo flow karta h and hence wo collide bhi karta h
Sir, H=vit//H=i^2r//H=(v^2/r)t..... .........does the jules law depends on resistance? And if it is true then how resistance helps in power dissipation?
I have two doubts - 1) - Why shaking electrons causes heat? 2) watch the formula carefully- H = V I T Unit of heat = joules Unit of voltage = joules Unit of current = Amperes Unit of time = seconds.... Put units into equations Now , We got - Joules = Joules × Amperes × Seconds But joules = Joules × coulomb(seconds from amperes cancel out seconds ) BUT JOULE EQUALS JOULE , SO FROM WHERE DOES COULOMB COMES AND DESTROY EQUALITY......ITS A GREAT DISCOVERY
Energy of a molecule E=n/2*k*T Where n=degree of freedom K=const T=temperature SO, Temperature depends on the energy of a molecule,,, hope u found ur answer
Also In other videos I want this loving voice.
Yes true
Yes bro Right
OMG ....sir U are great
Aap bohot accha samjhate ho..really sir..bohat jyada...bohot bohot bohot jyada acha batate ho...maine abhi yani aaj apka pehla video dekha..to mujhe bohot accha laga maine 1 minute ke andar hi aapke Chanel ko sabscribe kar liya really sir...you are superb , amaging,apic ,etc etc
Bhai same
@@PrashantYadav-dc1jb 😂😂
This is the very best video I got on yt...... Even he is far more better than the most popular or viewed channel of Yt regarding science..... I got to understand this topic after 1 year.....🙃🙃🙂
correct
Spittin facts
Sir aapki explanation bahut achi hai 👌🏻👌🏻🤩🤩
Every time when I get questioned by anything about science then I open TH-cam and search this channel cuz I love ur explanation and voice❤😊❤😊
Brilliant explaiation and also brilliant voice .I love both .thanks Khan acadmy
The origin of electrical engineering is from micro & nano level mechanical engineering. Random motion, collision, driving force to transfer electrons in ordered motion. Energy dissipation. These two branches shares hardcore brotherhood ❤️.
Best of best trick of learning🤩🤩
U r the best physics teacher I have ever seen I praise the one who has made u and your voice is really fantastic and magical
LOL LOTS OF LOVE❤️❤️❤️❤️
🙏🤠
I have a question
Do electrons actually collide with atoms as atoms are just clouds of electrons
So, when it collide, it will collide with other electrons
Isn't it the situation when heat produced??
I 'm confused as if it collide with atom then resistivity of silver must be more as compare to copper as it has large atom and so the nucleus therefore collision must be more and as well as resistivity?
Please answer!
Confused🤔
Silver has many free electrons so ..it's conductivity is more
Atom is not just just a cloud of electrons, it has protons too which are positive charges so when they collide it produces heat
No they collide and increases resistivity so the conductor heats i²rt
You are the best for physics explanation
Sir, please tell me experiment to show joules law of heating
Sir your concept is very clear and it is evident from this video
You really sound like spiderman ❤✨🙌I really love studying with you.
Yeah your voice is amazing 😎
The way you explain is very satisfactory
AMAZING SIR!! YOU ARE THE BEST EXPLANER I KNOW! YOU ARE A SOURCE OF GREAT MOTIVATION FOR ME!!!! THNX. A LOT!
Sir plz add video of how cells works, cell EMF and Internal resistance of cell.
Ram Sir aap 12th class ki video bhi Banaya karo physics aur chemistry ki
Thank you sir for great explanation
You explain everything very fluenty i like your videos... I'll share it to my friends
Sir , wire me current flow kr rha ho jiske karan heat bhi generate ho rhi hai to electric energy loss hogi agar us wire ki cooling nentain kre to electric energy ka loss kam kr sakte hai kya
Bhai dil jit liya bhut acha se samjhaya bhai tumne thankuu
Such a soothing voice u have
So trilliant explanation😇 😘😍☺😉😚😚
Sir I was trying to calculate heat dissipation of a lithium ion cell having capacity of 3.2Ah and open circuit voltage 3.7V and IR 35 mili Ohm.
Heat dissipation - H = VxIxt = 3.7*3.2*1 = 11.84 W
Heat dissipation - H = IxIxRxt = 3.2*3.2*(35/1000)*1 = 0.3584 W
Mili ohm to Ohm conversion (35/1000)*
Can you please suggest me why I am getting different values here. If we have 10 Cell in parallel and 12 in series then the difference will be more. Can you please help me in the same.
how can the electron collide with the atom like electron is a part of an atom right . so how is it possible
He is talking about the free electrons available in the material, not the bounded one... In a conductor, there are more free electrons, so we have an excellent current flow, but in the case of insulator we have few free electrons
@@soumyaranjanjhankar6552 u mean when the electrons which are shared from one atom to another?
No...I mean The electrons which are out of the bondage of nuclear force, i.e. attractive force between the electron and nucleus... Generally, in conductors, the valance electrons very loosely held and they are free from the bondage even at room temperature and hence called free electron
Sounds cool ❤
Good explanation.
Why is resistance needed in a circuit?
Or what is the function of the resistance... please tell?
It is used to adjust (increase or decrease) the flow of electrons i.e current in an electric circuit.
you explained very well in limited time..✌
nice voice and explanations
Thanks sir, for explaining the topic
Such a fabulous channel for learning 😍😍😍 ...wow yr amazing ...kya experience hai..😲
Sister kiya ye sir ne 5th chapter (heat) karwaya hae?? If yes can you please send me the link......🙏
Sir I have a doubt that is it is not necessary that all the electrical energy get converted into heat energy?
I have a doubt,H=I^2RT andH=V^2t/r . How is it possible that power is proportional to resistance both directly and inversely?
I am also watching this video to solve this problem 😔
First thing H is not power... Secondly it depends on the constant of proportionality. You can write the two things by using a different constant of proportionality
Bruh watch previous video of this series i.e. ' graph video of resistance' .....resistance is not the thing which is relating to heat directly or inversly , resistance is a proportionality constant....repeat....its a constant
Sir electron flow karta hai to lagtar bahte se wire thik kyo nahi hota
Sir 10 Ampers current, and 100jouls joul half kiya to current pe kya effect hoga
Good will bless you sir
👍
Sir filament k across potenyial kese bdega. Potential to current ko bdata hai na
Thanks sir because of you i have more than 90% in an annual exam
Aapke according atom colloid with electron, but according to chemistry electron to atom ke andr hote h
@@s..9870 electron atom k andar nhi wo energy levels yani shell m hote h aur sabse outermost shell wale electron ko agar thodi si bhi energy mile to wo flow karta h and hence wo collide bhi karta h
SUPER VIDEO THA SIR...👍👌
Good video sir
Nice,, explanation 👌👌🤩
Sir, H=vit//H=i^2r//H=(v^2/r)t..... .........does the jules law depends on resistance? And if it is true then how resistance helps in power dissipation?
Bro resistance are showing the how much work (Jules )
Kadak
Brother kiya ye sir ne 5th chapter (heat) karwaya hae?? If yes can you please send me the link.....🙏
Thank you sir
Sir it's my keen request to make video on thermoelectric current(peltier effect ,Thompson effect plz sir please 🥺🥺🥺🥺) i m from nepal 😭😭😭😭😭
He explains so good
Very amazing
The thing I like
The VR mode👌
Sir jii aise karte rahe humlo apko motivate karge apka video ko super sir jii love you 😊😊😆😅
Tq very much sir
Thanks for video, very easily to understand.
Very good explanation
Bestttttttttty👍👍👍
🙏🙏🙏🙏
thanks!
Nice video
Sir I'm Jabra Fan of KhanAcademy vids
SIR IF V IS CONSTT THAN P=V^2/R HOW WE CAN EXPLAIN AS POWER IS INVERSLY VARING WITH RESISTER FOR PARALLEL CIRCUIT?
KEEPIN JOULE HEATING EFFECT IN CONSIDERTIION
Awesome video sir😍😍
Sir you are great teacher
Very nice video
Not bad teaching sir thanks
LOVE FROM PAKISTAN HMARI JAAN
THANKS KHAN BHAI AMAZING
Why are u saying thank you to ìndia
@@cpr4ksa jnab india ko ni m iss teacher ko keh ri ho
@fiaz zia this teacher is indian
@@cpr4ksa teacher is not muslim its name is ram
Bhai koi bhi ho kya fark padta hai
U r great
why heat is directly proportional to resistance? how can heat be directly proportional to resistance and current at the same time ?
Bhai iska koi zabab nhi 👍👍
Your voice is very nice sir
Sir aapki voice acchi hai 🤔🤔 and nice explanation 😋😋
yup
You look 😍
Thanks a lot for your help and support you have great idea of AC.
Thankyou very much sir
Thank you sir😊
Sir But the electrone moves through outer cells of atom
Thnx.. Sir🖤
Super
Thankssss u for teaching wonderful,thnksssss sir🤔😊🤔😊
Sir aap konsi class ka video upload karte ho
nice
Is this floating head physics?
Next level explanation
Please tell me in Telugu but your explanation is simple
Veri nice sir
Electrons collide with the atoms even when current is not there. So why do we not see heating effect then?
electrons collides when there is electricity but charge don`t flow thats the reason why there is no heat energy .
When there is no current in the conductor very less electrons collide with low kinetic energy so you can't measure heating effect there
Ram sir thank so much for videos
R
Tq sir
Joules law ke niyam wala formula wrong hai + divided 4.2 kalori hoga
Nice explanation it really helps me.
Thank you
👍👍👍
"Power delivered"P=VI
Khan academy is best
Salute u
Tommorow paper
super👌
Thanks sir
Sir bulb me heat Kya kam aayegi
Bulb me heat energy lights energy me convert ho jata and bulb Glow karta hai
Sir series me current same kyu hota h
0:21
I have two doubts -
1) - Why shaking electrons causes heat?
2) watch the formula carefully-
H = V I T
Unit of heat = joules
Unit of voltage = joules
Unit of current = Amperes
Unit of time = seconds....
Put units into equations
Now ,
We got -
Joules = Joules × Amperes × Seconds
But joules = Joules × coulomb(seconds from amperes cancel out seconds )
BUT JOULE EQUALS JOULE , SO FROM WHERE DOES COULOMB COMES AND DESTROY EQUALITY......ITS A GREAT DISCOVERY
@Get_Maths the unit of V in not joule but j/c
V=J/C
A=C/S
T=S
multiply them and u will find only joule
Energy of a molecule E=n/2*k*T
Where n=degree of freedom
K=const
T=temperature
SO, Temperature depends on the energy of a molecule,,, hope u found ur answer
@@shahadathhossain2659 yes - thanks for your help . I got some mistakes.
By shaking electrons the positively charged atom and free electrons cause collisions (friction) hence heat develops
Very nice sir
😍