1.00.20 2F1 is never centre of curvature for lenses. If it had been so then we can claim for lenses also focal length is half of radius of curvature. BUT we know that for lenses focal length depends on Radius of curvature of both sides + R.I. of lens material + RI of medium ... LENS MAKER’S FORMULA. That is why we cant show 2F1 as C ( even though shown in so called tution notes)
True!! But you are talking that it depends on radius of curvature and refractive index it is in class 12 ray optics lens maker formula We are here discussing about only class 10 syllabus LIGHT Thanks for your comment All the best🙂❣️
@@physics-e-ishq What is wrong in 12th can't be right in 10th. I have seen many youtubers spreading the same. Hope you edit this part and add this point
Thanks u will get quality content here not rubbish motivation that is available everywhere on yt all teachers are good they teach best but now they are following yt algorithm ❣️ Stay connected all the best for ur future 😊
Tu kahana kya chahta hai ki prashant bhaiya or shobhit bhaiya accha nahi padhate ek baar padh ke dek le un se tab boliyo 😡😡😡😡😡😡😡😡 rahi baat strategy ki tho padhai karo tho sab aasan hai or na karo to ABCD bhai mushkil lagagi 😒😒😒😒😒😏😏😏😏😏😏
I am not disrespecting any one I am just saying that only following strategy not doing practice is not good for ur academic. Undoubtedly they are best teachers
In advanced physics, electric current is considered a vector quantity. Here's how it is understood within the context of tensors and advanced physics: ### 1. **Basic Definition:** - **Electric Current (I)** is defined as the rate of flow of electric charge through a conductor or any medium. Mathematically, it is given by: \[ I = \frac{dQ}{dt} \] where \( Q \) is the electric charge and \( t \) is time. ### 2. **Current as a Scalar or Vector:** - In simple circuits or when discussing the magnitude of current, it is often treated as a scalar quantity, which represents the amount of charge passing per unit time. - However, in the context of electromagnetism and more advanced physics, current is treated as a **vector** quantity. This is because current has both magnitude and direction, especially in the study of current flow in three-dimensional space. ### 3. **Current Density (J):** - **Current Density (\(\mathbf{J}\))** is a vector quantity that represents the electric current per unit area of cross-section. It provides a more precise description of the distribution of current in a conductor. \[ \mathbf{J} = \frac{d\mathbf{I}}{dA} \] where \( d\mathbf{I} \) is the current through a differential area element \( dA \). The vector nature of \(\mathbf{J}\) reflects both the magnitude of current density and the direction of current flow. ### 4. **Current as a Tensor:** - In even more advanced frameworks, such as in the theory of electromagnetism using special relativity, current can be represented using a **4-vector** or **rank-2 tensor** in four-dimensional spacetime. - **Four-current (\(J^\mu\))**: In relativistic electromagnetism, the electric current is part of a 4-vector: \[ J^\mu = \left(c ho, \mathbf{J} ight) \] where \( ho \) is the charge density, \( \mathbf{J} \) is the current density, and \( c \) is the speed of light. This is a 4-vector in the context of special relativity, combining charge density and current density into a single entity that transforms appropriately under Lorentz transformations. ### 5. **Summary:** - **In classical physics:** Current is often treated as a scalar when considering simple circuit analysis. - **In electromagnetism:** Current is treated as a vector quantity (e.g., current density \(\mathbf{J}\)). - **In advanced physics and relativity:** Current can be part of a 4-vector or a tensor, integrating the concept of current with charge density in spacetime. So, while electric current is most commonly a vector quantity, its representation can become more complex in advanced physical theories, where it may be part of a tensor or a 4-vector.
1:36 bro all physical quantities are tensor of different order. I think what he said was correct because it appears more logical. Then tell me if area is scalar, why is elemental area vector? 2:07 its like area is scalar but dA is vector😂😂...and what is current element??...its just another way to define vector current...( I think ). 2:53 he didnt said that current in current density is vector...he said that current density as well doesnt follow law of vector addition... My final question is that plz explain me if u r correct then why is current scalar even when all its characteristics are similar to current density...( Both dont follow law of vector addition.)
bhai light v jrurat k anusar particle aur wave nature dikhata hai toh pehle tu v ye baat sikh le fir gyan peliyo SCIENCE IS WAY OF MAKING THINGS CONVINIENT NO ANY FRAME IS PERFECT . BY THE WAY BURI LGI HO TOH SORRY
Tu wahi hai naa jo nms sir ko expose karne chala tha😂😂 Tujhe physics ka "p" v samajh me aata hai? Mujhe pata hai khan sir thora worng Explain kr diye iska matlab tu unko expose karne chala hai beta jaa padhai kr le
Atleast we're having the possible answer my peaceful buddy , but what if I ask you about the gender revealing 🙂 Aur sun agli bar bhagwan ko bich me mtt lana baki tujhe jisse pblm h us tk hi rkh ..... Jai shri ram 🙏🚩
@@Thephysicsplace absolutely true plz reas that 3 volumes i respect your opinion if I am wrong I am sorry but plz try to understand the point Sbt sir had also made a video on it
Zarurat ke hisaab se hi koi cheez vector ya scalar defined hoti h. Vector is a tool in mathematics, its created to explain 3D motion. So in such mathematics u define certain things. U dont look for wajah or cause.
