This is from Electromagnetic waves from class 12 phyics...This concept is the one due to which James Clerk Maxwell predicted a problem in a law called Amperes circuital law...and further have a modified law called Maxwell Ampere Law...This introduces us to displacement current+ tells us that A changing magnetic field can generate changing electric field..which suggest that electric and magnetic field can sustain each other and this he theoratically predicted the existence of EM waves!!
Dear sir, I'm Lakshya Anand a student of class X. Sir I am curious to ask a question that- Why does light ray REFLECTS BACK instead of REFRACTING when it enters a water droplet which acts as a prism in atmosphere during formation of rainbow?? I hope you'll clear my doubt sir. Thanks
For those who still want to know more, there's something called displacement current in 12th physics syllabus. Ncert covers it, you'll find more in some refreshers.
A good food for thought would be "can I consider an open switch as a capacitor?" If no, why not? If yes, then why don't we do the same analysis with it?" Also, since current flows with in a capacitive circuit, we have current flowing in 'open circuit'. Then why do we say we need a 'closed circuit'?
• A closed circuit is defined in terms of FLOW OF CURRENT ! and in capacitive circuit the current is not ZERO ! Hence the current is flowing so even if there is a break in connection of wires ! we would still identify the circuit as CLOSED CIRCUIT! An open circuit is the circuit in which no current flows whereas this circuit is just a circuit with a space between it (capacitor) NOT OPEN • And YES you can consider a OPEN SWITCH to be a CAPACITOR but the capacitance will be extremely LOW ! As it has its area in mm^2
My doubt is :- We know that lambda(λ) is inversely proportional to refractive index(n) ie- λ ∝ 1/n so, now when we pass a light wavelength of 600-700nm that is a red light through a denser medium of very high refractive index then we should see a change in colour but when i tried it out then there was no change in the colour why is it so. I also tried searching it on google but found images which completely contradicts the relation between lambda and refractive index. (image) Here when the human has passed a beam of green light through a bottle of oil then the colour has changed from green to red this means that refractive index is directly proportional to lambda as a light of lower wavelength has change to light of higher wavelength which is not true. I have been working on the problem from the last two weeks . I would admire you if you would clarify my doubt on board . thank you sir
Hlo sir ur vision and interst is compeletly shown in ur concepts of physics ... proud to be an viewer of ur book which an as important for any competitative exams ... not only jee but ipho without ur book i bet no one start any other problem sloving book even though foregin authors ...... tq sir
Reminds me of my Math Teacher who taught us on the floor with multicolored chalks , and because of him I am till here . I am very thankful to my teacher 👍
sir, I request you to conduct a lecture on the topic "TIME" and describe its function, importance, nature and all brief knowledge about Time. please conduct this lecture as soon as possible sir.
Dekho bhai basically ye hota h battery ke positive side se connected capacitor higher potential hota h Or negative side se connected lower potential hota h Or hm log jante h higher potential se lower potential electric field flow krta h so us do capacitor ke beech me bne electric field ke karn electron pd force lgta h wo electric field ke oppposite direction me flow hota h as we know electron ke opposite direction me current ka flow hota h hence from +ve battery connected capacitor se -ve battery connected capacitor ke beech me current bnta h this current called displacement current plz pin krdijiye sir
You are genius sir....😁.I'm doing my btech from electrical and you easily clear all the basics and fundamental question arising on my minds .hats off to you sir🙂
Sir please explain I have a doubt. 1/0=infinity. that means 1=0*infinity,means 1=0 same like this 2=0,3=0,4=0.....=infinity. Please sir explain this.🙏🙏🚩🇮🇳🇮🇳
Jatin kumar class 10 rmp . I have watched your video . Magnet ka pol khol In which you have mentioned about poles are nothing. So similarly in a battery . +Ve and -ve terminal has Same structure or different
Jatin kumar class 10 rmp ...When white light crosses the rectangular slab of prism it gets dispersed. So why light not gets dispersed when it passes through simple glass slab
Sir, if flowing current have some magnetism then wire in which current is flowing why it don't attract metallic things. Please sir answer this still you think that this is a fool's question🙋
Thankyou So much Sir .., not only for this only solution and but also for all your contribution towards physics . whenever any doubt comes in our mind the only name come's to every student is yours....
Hi sir , myself himangshu saikia from class 10, My question is that , we all know the famous einstein's eq. e=mc² , where energy is equals to mass of an object , times the square of the speed of light . But as we know that the light photons are massless , so is it not violating this famous eq. in this case ? ( As we know that light photons also possess energy ) Plz clear this doubt 🙏
Sir , is lateral inversion all a lie? beacuse if the light rays criss cross in the manner shown in diagrams that support lateral inversion then all those image should also be inverted -hardik class 10student
Accidently i was also studying the same in my classes wondering about that thing. Now i got the answer. A very very Thankyou sir 😊❤❤ for teaching us this important concept
Sir as you explained that the charge q is moving to the plate of capacitor so it shows deflection in the Ammeter It is okk but sir as we know that positive charge doesn't flow ,but here from the positive terminal of the cell positive charge flow and get stored in the positive plate how it is ؟ Sir by the same way my teacher also explained that due to the accumulation of opposite charges on both the plate from the battery Displacement current is produced I am so confused by taking the same that how positive change flow to the positive plate sir please
This is equivalent way of describing. In reality electrons flow from the positive plate and go into the positive terminal of the battery. They then travel through the battery and come out of the negative terminal and then go to the negative plate of the capacitor.
My respect for you amplifies every time I watch a new video of yours 😊😊 Thank you for your contribution in physics.. truly for me physics is incomplete without you Thank you Sir 🙏🙏😊
Sir then what about the displacement current in between the plates of the capacitor?? Please 🙏 sir make a video on that. This topic is so much doubtful This is
Sir,I would like to tell you that there are good books available on Mechanics,and for Quantum and Electromagnetism,we have your books,but sir,there is no such good book for Thermodynamics and Statistical Mechanics.I mean,there are books,but not comfortable enough for Indian students.I am in BSc 3rd year,and I still don't get a feel of those topics.So sir,I have a request for you to write a book for Statistical Mechanics and Thermodynamics.
@H C VERMA Sir🙏🏻 I 'm in 9th Standard and i have a doubt can you please help me to clear this *DOUBT :-* If we take an example of pencil and the earth since the earth is attracting a pencil with some force and according to Newton's third law of motion here also the pencil will also attract the earth with same force but since the mass of earth is larger than that of pencil that's why the pencil gets attracted towards Earth and falls on it. On the other hand.. *We know that Earth attracts moon and by the Newton's third law of motion the moon also attracts Earth since the mass of earth is greater than the moon then why the moon does not get attracted towards Earth and falls on earth's surface?*
Due to its circular motion.......bro....as you're in class 9 th......so,i think you don't know about...the forces acting on body in circular motion........and how these bodies, where balance there........ Actually there's is strong force equilibrium between gravitational pull and centrifugal forces
@Pranav, the actual answer is an interplay between the type of force that gravity is, and conservation of angular momentum. Gravity is a conservative force which acts centrally. Consider Earth as origin, then there is no torque on moon due to gravity of earth, therefore according to conservation of angular momentum, there is no change in angular momentum of the moon, so it continues to rotate around the Earth. Had it been not rotating to begin with, i.e. since the time of it's creation, it would have fallen on the Earth. So in short, it could be said that it's not falling on Earth, since it began rotating when it was born and since nothing is stopping it from doing so, it will continue to rotate around the Earth. @ultimate racer: The sentence of yours: "there's is strong force equilibrium between gravitational pull and centrifugal forces" is not right. Moon is in an elliptical orbit around the Earth. That means that every moment it's direction/velocity is changing. This means that there is net force on moon which is causing change in it's direction/velocity. Force due to gravity is the centripetal acceleration, and this centripetal acceleration causes the moon to change its direction/velocity every moment while it is orbiting around the Earth. But for the sake of argument let's say that your statement is right, then there is no net force on the moon, therefore it should move in straight line, which it doesn't. If you liked my answer you might want to take a look at videos of my channel where I make physics related videos: www.youtube.com/@thephysicstrain
Sir, can swahchild radius can easily calculate with a simple assumption i.e escape velocity of given mass can be greater than speed of light but if we take here escape velocity as speed of light(C). Now we put escape velocity i.e C in Simple equation of class11 [v = √(2GM/r)] From here our value of radius when a mass is contract such that its velocity is equal to speed of light. And really we found r = (√2GM)/c^2 Which absolutely match with swachhchild radius? Sir plz give me my answer.
Dear loving physics 💙 sir! Take pranaam🙏😌😌😌🙏🙏🙏🙏🙏🙏 from KEMPASADA. I'm-Kelvin John Mamuthy Patra,a student of BSc 1st yr(phy),DD College,KJR,Odisha-here QUESTIONING🤔 that, "Can we make an ANALOGY of, (i) 'a man on a boat floating in a direction in a narrow canal'is to 'an electron moving from higher to lower potential difference in an electric wire'; (ii)and,in this particular imagination, 'electronic and conventional currents ' is to 'the man on boat and fluid motion opposite to it(i.e.water flowing when boat moves )' ???🧐🧐🧐🧐🧐🧐 This doubt is with me from my 10th class(2019) and still remains mystery 🧭. I made several attempts to solve this with my teachers in high school and +2,THE PARAMA wanted sth else😇. Now,u r my last hope of this day to understand, " ME AND MY FEELINGS TOWARDS PHYSICS 💙 " With a last tag, I love u sir for CONCEPTS OF PHYSICS and thank u 4 giving us knowledge (eternal) through this media,and oblidge😅🤞🏼 🌷🌷🌷🌷💐💐💐💐💐💐💐💐💐💐💐💐💐🌸🌸💮🏵️🏵️🌹🥀🌺🌺🌼🌷🌷🌱💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐💐 Then I suppose this imagination will unify two macroscopic forces😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😚😚😚😚😚😚😚😚😚😚😚😚😚😚😚😚😚😊😊😊
@@jiveshdonode1271 thank u sir! Now I will modify it with my mathmatics in the quantum world!✌🏼✌🏼As my thinking is basic of 😅.....probably ....😁 I want to keep it secret!!
Pehle Mujhe ye sab question class mei ata tha , Mujhe lagta tha ki mere dimag mei aisa nOOb jaisa question qu ata hai , baki kisi ke dimag mei to aisa nahu ata .. mei allen mei tha , aur yaad hai sir ko pucha tha 🤣🤣 sir electron urke dusre side ja rha hai kaise
Thankyou sir what a way you teach like quiching thirst of small child for knowledge i wish we always have souls like you pouring the water of knowledge of physics in the young generation mind it's like good charm for us to hear you sir thankyou very much
If you are willing to learn Physics of Class 11 and 12, then start with Sears and Zemansky University Physics. It has excellent theory and very good questions. Along with that, you could also study HCVerma Sir's Concepts of Physics.
Sir why our indian education don't discuss the truth about electricity. They just assume a steady state current and doesn't discusses why a uniform electric field gets established all along the current carrying wire which drives the current. They tell us that electric field is established by battery but if that's true electric field will drop at large distance and so is the current but that doesn't happen. Please address this issue and check out "Veritasium's (who is a popular youtuber and physicist )video on electricity and surface charges on wires for more detail"
But the electric field between the plates is changing. And due to which the electric flux is changing. And due to which an imaginary current is supposed to flowing between the plates called displacement current
Ummm...current flows against the flow pf electrons...right....so the view is...positive charge is spread on one of plate...and negative on another...why this is happening is...to maintain the potential difference...so as the negative and positive charge moves in the wire...the current flows....its not jumping through capacitor...capacitor is only performing storing of charge...
GUY'S PLEASE READ THIS PLEASE AND ASK TO SIR PLEASE..... HC Verma sir,A HONEST REQUEST TO U...SIR PLEASE UPLOAD ATLEAST 11 & 12 Level PHYSICS ON RU-vid OR UR OWN SITE FOR WHATEVER PRICE U WANT OR FREE ON RU-vid (that's ur call sir).. because due to PHYSICS ONLY MANY LAKHS OF STUDENTS ARE TRAPPED IN COACHING MAFIA'S TRAP IN KOTA AND MANY MORE CITIES.... PLEASE SIR U WILL BECOME IMMORTAL SIR LIKE WALTER LEWIN SIR....(ALSO IT WILL INCREASE UR BOOKS SALE OF 11&12 ,i know it won't be any matter for u...but u deserve that too for ur contribution to physics) As because of your course ...MANY STUDENTS WILL BE BENEFITED, COACHING MAFIA'S ROLE WILL BE CUT DOWN TO ATLEAST 60-70% ,MANY MORE STUDENTS WILL DEVELOP LOVE TOWARDS PHYSICS... PLEASE PLEASE SIR ... ACCEPT THIS... IT'S A 6-7 MONTHS EFFORT SIR... PLEASE DO IT SIR... HOPING FOR POSITIVE ANSWER FROM U SIR...
Aukaat negative Level negative Padhai negative 5 din(5,6,7,8,9) only 5 days to do 75-80% in physics and chemistry 25-30% in maths. Let's start I am the chosen one I am the main character. I can't loose i have to i am the main character after all. It sounded like a dream just like her where her in IIT BOMBAY.
Aukaat negative Level negative Padhai negative 4 din(6,7,8,9) only 4 days to do 75-80% in physics and chemistry 25-30% in maths if not this as much as I can i will do Let's start I am the chosen one I am the main character. I can't loose i have to i am the main character after all. It sounded like a dream just like her where her in IIT BOMBAY.
sir can you please see, a 2016 jee advanced comprehension type question is solved by assuming electron flow through plates of capacitor... isnt that wrong?
@Hc Verma sir, I have a question that why does time seem to flow only in one direction, I mean we feel that we all are moving in forward direction with Time. ??? 🙏 A dropper student preparing for jee Shiv Shankar Kumar sah Darbhanga
sir, I request you to conduct a lecture on the topic "TIME" and describe its function, importance, nature and all brief knowledge about Time. please conduct this lecture as soon as possible sir.
Hello sir I have a doubt Why will the charge flow from the battery when the circuit is not closed? Battery works when the circuit is completed right? Then why does it takes e from the capacitor Kindly reply to my query 🙏
Sir please reply to me that in calculaton of capacitance of parallel plate capacitor we consider the electric field due to a conducting plate is Sigma/2epsilon,,but according to gauss theorem we know that for a conducting plate the field is sigma/epsilon.....why this happen please answer my question sir
