Physics ki Band Bajadi hai | Why is Current a Scalar Quantity? Right Explanation by NMS Sir 

I don’t know why YT showed me this video. After watching this and after checking the confidence of this person let me add something. Tell me one situation where current follows vector laws. You will not find a single situation. While calculating magnetic field we don’t take current as vector we take “current element” where we associate small element “dL” which has direction not the current. Similarly in current density we take projected area which is perpendicular to direction of current so that projected area makes it vector not the current. Also you can treat it like charge density times velocity,here velocity is a vector. In AC calculation we add two currents as a vector but in AC it is not a vector it is a sinusoidal quantity which has some phase and frequency and if we add two different sinusoids with same frequency and different phases then we are actually adding their instantaneous values and it follows phasor concepts not the vector concepts. You can say that two sinusoids of same frequency but different phases can be added with the help of phasors and it is similar to vector addition. We are actually adding two sinusoids of same frequency to get a new sinusoid. Tell me one situation where we take current as a vector. You will find none. Moreover it is not like “jaroorat k hisaab se define krtey hn…”everything in physics have meaning and significance. Let me tell you one more point VerySmall angular displacement can be treated as a vector coz it follows vector rules (standard) while the large or finite angular displacement can not be taken as vector coz it violates the basic rules of vectors. So it’s not like” jaroorat k hisaab se define krtey hn” there are standard rules which must be followed by vectors. For deeper understanding read “The Feynman lectures on Physics volume-2”chapter-2 section 2and 3 Volume-1 Chapter-11. From where this confusion came from? When we add current in AC sinusoids (same frequency with different phases) then we can add them by taking it like a vector whose magnitude is max value and phase as angle. Now one more request in this video he is showing that he knows more than others please take a pause and calm down.

Current is a scalar as it measures the net charge flow rate through a cross-section, direction-independent. Current density is a vector as it describes the magnitude and direction of charge flow at each point, essential for modeling current distributions and applying Maxwell’s equations in electromagnetism

Your initiatives are appreciable ! Keep up the good work 🙌🏻👍🏻

The only teacher whom i admire from heart...will always support you sir♥️♥️♥️ ...Sir ka ek famous dialogue"physics me feel hi nhi sirf concept ane chahiye"♥️♥️

Ab toh mujhe lg rha h ki , ab tk Maine Puri physics he glt pdi h

kamal hai bhai nms sir ka

Very informative video sir thank you so much ❤❤❤🎉

RJ sir ne 2021 mei hi yeh doubt clear kr diya tha 💪

Thank u so much teacher...in the Era of misinformation...we have someone whom we can trust for appropriate knowledge

Sir youtube mein jo bhi teacher sahi phy advance level padhata hi unko hate aur subscribers aur views bahuth kam hota hi .aur unmese aapka channel ek hi .lekin my chahtha hu apkii channel famous hona chahiye thaki sabhi ko sahi phy ka content available mein joga . Thanking you sir ❤.

First of all thank you so much, being a physics teacher I can understand your initiative is so important in today's generation, mainly in online platform. Be healthy, With lots of love sir, ..

Sir aap bahut logical baat karte ho

Great Explanation Sir ....❤❤❤❤❤

Dear friends, aise mahaan teacher se bachke raho. Ye pressure ko bhi jarurat ke hisaab vector kahega aur jhantoo logic dekar proove karne ki koshish karega.

Current is scalar becoz of conservation of charge. That is charge flowing towards a point is always equal to charge leaving the point. It doesn't depend on the direction in which charge is flowing.

Physics Sir ❌️ Physics KING ✅️

The only teacher whom i admire from heart...will always support you sir♥️♥️♥️ ...Sir ka ek famous dialogue"physics me feel nhi concept ane chahiye"♥️♥️

Sir aap ne kaun si neyi baat bol di ghuma fira ke wahi boldiya sir aapne. I agree u explained in a better way in a good clarity.

Sir my humble request please dipole ka component ase kiu nikal te hain please bata do

learned something helpful mai bhi vector addition and current he sochta tha

First time I have seen someone correcting a wrong concept but by giving another wrong concept (better say stories) and also being so confident in the process 🤦‍♂🤦‍♂

Love You Sir❤

After seeing your catchy thumbnail, I decided to watch the video carefully. After viewing the entire video, I tried to identify any misconceptions or new concepts you introduced, but I found none. I'm also puzzled by your claim that 98% of students misunderstand this concept (I'm curious about your source for this data 😝. Proper references and justification are needed if possible). The diagram you drew on your digital board illustrating current addition in branches is based on Kirchhoff's Current Law (KCL). Current always follows this law. It's a well-established principle in physics, which uses scalar algebra, not vector algebra. Therefore, if asked why current isn't considered a vector, one can argue that since current doesn't follow vector addition, it isn't a vector. This explanation is accurate, so I'm not sure why you claimed it's incorrect.

Sir can you pls explain me why in case of EF due to dipole at any theta we cant resolve the distance between the pt. And dipole into its rectangular components ?

The Gem❤️❤️💖

Yrr sir you are something revolutionary with ideas

Some men, change your perspective about life forever. It never matters where they come from, what matters is the mark they leave. NeelMani sir, long long long time ago, I was your student in TPM1 batch, nurture, 2015-16. You changed my worldview, in a lecture on the last day before diwali holidays. I'll never forget that. I'll pay my debt back. I still remember that poem, "Surya ki kiran ka moksh tab hai jab vo mujhse takra ke tumhaari aakho par padti hai".

thank you very much sir

Love you sir , for making me to do love with physic

Thanks sir for teaching us right thing

Nice research 👍

Sir aisi videos banate raho , badhiya samjh aa rha hai , humko bhi or baaki NAAM ke teachero ko bhi 😂

Sir, answer please.... Then , how will you prove theoretically that directions are not important for finding net current?? ( not experimentally)

This misconception clearance series must be continued... 11 and 12 ka ek Physics ka topic mat chodiye, jisme apko lagta Hain ki widespread misconception Hain please 🙏

thankyou sir for this, maine bohot notice kiya and school and coaching mein... master sahab ko proof ka idea nhi hoga toh ratwa denge nature ki property bolke, ekbaar toh mere school wale sir laws ka proof dene chale the, newton second law ko gravitation ke concept se

Kindly continue this misconception series plzzzz

MISCONCEPTION is one of the major reason of silly mistakes.. this misconception is the most loved topic for examiner for framing questions.....

king of physics

Sir should unleash his whole power of physics..!!

How can teacher understand the difference between PhD and selection level study

Sir we have seen addition, subtraction and multiplication of vectors. Why don't we have division of vectors?

Awesome ❤

You are a real teacher sir

Sir, you are the greatest physics teacher of India.

DC Pandey clearly writes current as scalar quantity ❤

Bhaut acha sir kuki sach laane ke liye 🙏🙏🙏🙏🙏 samne main math ka teacher hoon 12th pass aur 12years se pada rha hoon lekin thoda bhaut physics ke baare mein bhi janta hoon bhaut saare teacher galat pada rahe the bhaut saal se lekin aapki himmat ko salute hai 🙏🙏🙏🙏🙏

The question could be framed in a more intriguing way: Why is current considered a scalar even though current density is a vector quantity? Additionally, current is never treated as a vector in electromagnetism. In Lorentz's law, the velocity of a charge is considered a vector, and the length of a wire is also treated as a vector. However, current is always considered a scalar.

So much repect to you for A slap to the teachers who always believe in ratta in physics... I have gone through it...i know, How logic and thought are not cared in this competion phase of surroundings..।। 🙏

Abhi current electricity nhi pdha But ye smj to pura aagya sir Charan sparsh🫡😍

Almost in every coaching its taught like that, it doesnt follow vector law of addition so its not a vector its sad reality only few can teach things properly. Thank you sir

Sir arguments karne se NEET JEE clear ho jayega kya?

I think we can't consider 3/a and 7/a directly. If the area is identical then same value current should flow through the wire which is 5/a and 5/a. And for current density we have to consider angle between current and area vector at this location not overall conductor, or wire bent location.

Sir you are amazing 💖💖💖

Genuine doubt Sir dipole wala explain kardo r vector kyun nahi lenge.

Current is a scalar beacuse it is defined as charge passing THROUGH A PARTICULAR CROSS SECTION IN A GIVEN TIME PERIOD. So CURRENT HAVING DIRECTION DOESN'T MAKE ANY SENSE. Current density , however, has a direction as it is defined at a particular point (in di/dA, area tends to zero) so it is always a vector. PLEASE REFER TO PROF. HC VERMA'S VIDEO ON THE SAME TOPIC.

GOAT of Physics

my teacher taught me correctly , neverthless an amazing video!

Regarding area ,it is not like we choose whether there is direction or not , to define an area properly the orientation of area is important, that means to define area completely it is not a choice but a compulsion to have a direction,so it is a vector and current doesn't have direction but have a sense

Sir hamare teacher ne aisa btaya tha ki tensor quantities vo quantities hoti hai jo distribution pe depend krti hai aur uska example moment of inertia, refractive index se btaye the, ek baar aap ise bhi clear krdenge comment mai hi sahi?

GREAT SIR...LATE PATA CHALA AAPKA CHANNEL FEW DAYS ONLY LEFT FOR JEE ADVANCED☹.....I AM NOT AT ALL PREPARED FOR ADVANCED KOII ACCHE SE SAMJANE VAALA MIL HI NAHI RHA....AAP REALLY PHYSICS KA GOD HOO

Thank u sir

Sir par dipole ke wajah se electric field nikalte samay ham dipole ke components kyo karte hai aur r vector ke components kyo nhi karte ye clear nhi hua.

Sir can you please tell the reference book from which you are telling all this , so that we can also read it

Gyan Diya jhant bhar aur hungama raat bhar

Thnk u sir , aaj clear hua I want teacher like u in my life , sir i have one more doubt can u explain why we say current as a fundamental physical quantity ?? As it was depend upon charge and time...

Sir jii aapne jo likha j=I/A wo vector hai nai kyu ki vector ki division defined nai hai Agar koi cheez vector hai toh usko vector addition ke rules follow karne chaiye Haan ye baat hai ki current ki direction zaroori nai isliye hum usko vector nai bolte Aur rahi baat tensor ki toh moment of inertia ko hum plus two level tak scalar hin bolte hai lekin baad me wo rank two tensor ke hisab se act hoti hai To current tensor hai ye confusion wahan se create hua hoga

I am going to persue integrated phd in astronomy from TIFR and i had this doubt since class 12 that why current density is a vector quantity coz even that doesn't follow the laws of vector addition. After 5 years, my doubt has been ckeared lmao. Kash humare time me bhi ese teachers padhate online

That one teacher who says 'mere method se nhi kiya beta to galat hai' He needs to keep his ego aside for such kind of videos. Such type of videos are appropriated but ego that he carries that only his method of explaining something is the only method is not good for any teacher. The point he made that teachers explain current ki vo tensor quantity hai, i agree to this because there is a lot of confusion among teachers that tensors are third type of quantity along with scalar and vector. But i disagree with the fact that he thinks explaining that current is scalar by stating it does not follow vector law is wrong. As anything can be disproved using various methods. Their are plenty of reasons that current is not a vector, and not following vector laws is one of them. Students at 11 and 12th level will not get all the tensor stuff, so they are given the simplest reason. He himself rant for 10 minutes without explaining why the statement "current do not follows vector laws so they are scalar" is wrong because there is nothing wrong with the statement. It is just one way you can explain why current is scalar their are several other ways. I respect the kind of series of videos, but keep the ego aside that will make you the only thing you are going against. Their is no place of ego in physics. Even the greatest mind of all time disagree, but they learn from the discussion and move.Peace ✌️

Sir plz teach class 11 and class 12 physics plz in series for free

Guruji ye to batao ku hum r ka component na lekar dipole ka lete hai ???🙏🏻

This is the best series 😂❤

bhai samaj me hein nahi aa raha kon sahi hain kon galat????????

Goat for a reason

I am in those 2% 😅

Great sir

Sir kisi book me mentioned hai ye baatein. Plz references dijiye.

Mr. Galat Pandey was once teaching "centrifugal force balances centripetal force" i tried to correct him in comments and the students abused me the comment section They even said, hum to galat padhenge lekin sir ke khilaf nahi sunenge Teacher fan following is the biggest road block in a students selection

Bhai log ye teacher god hai physics ke ❤

AAPKE VIVEO "TITLE " ME SCALAR KA SPELLING GHALAT HAI 😁😁😁 Mere Kahne k baad aapne Scalar ki Spelling Sahi Ki 😂😂😂

❤

Now one question time is vector or scaler

Because it has no spatial direction

Because it has a fixed direction(high potential to low potential).

nms sir --- goat of physics

Whew! You saved me here too😅

Vector :- any quantity which have a value as well as useful direction.😅

Sir apka source konsa kitab hai

Maylab sir halliday and University physics ne bhi galat likha hai aapke hisaab se? Thnj please challenge feyman also

Ye to bataye hi nhi ki current kyo vector law of addition follow nhi kar rha hai

I think, No one should take online classes....after watching your video. Thank you.

Sir please write a word for manish raj sir What do you think about his ??

sir ko award dena chahiye 🏆🏆🏆🏆🏆

🌟 solution is here 🌟🫴🏼 PW batch :- lakshya 1.0 2023-2024 ( rajwant sir is right) Lakshya batch Chapter 3( current electricity) Leactue 1 Time :- 1:23:10 sir ne bataya tha. Yah ak tensor quantity hai with rank zero "0" . But aapke syllabus me nahi so ham kahenge because it follows scaler addition. Please pin me if me and teacher are correct 🙏.

Sir Please correct Scalar meaning in heading....

4:16 sir dipole wali baat toh bs ek trick sort of batai gyi thi hume Hum log pehle pura derive wagera karake chize batai Fir as a trick to enhance solving speed , ye trick batai gyi Baaki toh sir this series is extremely helful (concepts fir se click hothe dimaag me)

My own hypothesis/interpretation Vectors are those quantities which are having 'spatial' direction.

Saleem sir op ❤❤❤

sir dipole ka bhi bata do

गुरुदेव 🙏🙏🙏🙏🙏

Sir famous hone ke liye simple concept ko complex mt kruye Hope u will understand 🔥♥️