Induced Current and Induced EMF
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- čas přidán 20. 07. 2024
- How is induced current and induced emf produced? What is Faraday's Law and Lenz's Law? I have also explained the very basic concepts of magnetic flux and magnetic flux linkage to aid in the understanding of induced emf and induced current.
Catering for IGCSE and SPM students.
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wonderful explanation ,'m from morocco , and thanks to you i understance that , god bless you
Greetings from Malaysia! I'm very glad to hear this. Thank you for dropping a comment. God bless you too.
Didn't expect it to be this much helpful !......any confusion existed ever has been disappeared ♥️
That's really great! I'm really happy it's helped 😊
Sir iam searching for this type of teaching only, now I found it ,thanks a lot for this explanation and please continue this
I'm glad you found what you needed! Thank you for dropping a comment 😊
Thank you so much for this video, it's really helped me understand this topic for my exams 😁
This was great it give me all the important points for my presentation *as grade 8* . I understand it more clear than my teacher taught me. Thanks sir from Ethiopia 🇪🇹.
That's really great to know. You're most welcome from Malaysia. 😊
Thank you for this video! I was wondering if instead of a Faraday cage also a simple box of plastic (e.g. the ones where you can put toys in or stuff) can be used as isolation for batteries and electronic devices in case of induced current generated by multiple M- or 1 strong X class solar flare with CME, since that would be induced current.
If yes, would the plastic lid be enough or do you need to isolate the edges with something?
Thank ypu so much!! your explanation is very clear and understandable
Thank you for the kind words. I hope my channel will continue to help clear your doubts! 😊
What an amazing lecture sir! Every concept got crystal clear
Thankyou so much
Thank you very much for your kind comments. I really appreciate it. 😊
Good, I will learn from you. Thank you.
Sir, it cleared all my doubts.Such a helpful clss, just in 10 min i learnt more than my 1 hr lecture in schl👏🤝❤️
I'm very glad it was useful 😊
Tq soo much ..I had this doubt so long, difference between induced current and emf ...now my doubt cleared once again tqqqqqq
You're most welcome. I'm very happy thay it's helped! 😊
Awesomeeee🤩
Toooo good explanation......😊
Please sir do prepare a video on how exactly an induced emf works!!!!
Thank you! OK I will get to that video.
Thank you sir for a high quality video! Terimakashi!
You're most welcome! I'm glad you appreciate the effort I put in to the quality. 😀
Thankyou for your awesome explanation in just moments
Keep on going
Thank you for the kind comment! Appreciate it. 😊
Thank you sir! Really easy to understand your explanation!
I'm very happy to hear that. You're most welcome 😊
Very very helpful. I am very grateful to you🙏🏾🙏🏾
Thank you for your kind comment. 😊
Thankyou so much sir 😊well described
You're welcome. I'm glad you think so. 😊
LOVE FROM"" INDIA "".
AMAZING EXPLANATION. ..
GOD BLESS YOU. .....
Thank you! 😊
@@MrRuelTuition u r welcome sir
@@MrRuelTuition u speak so much fluent english more than me.
Awesome 👍👍👍👍👍👍
Thank you!
The opposing (or induced) emf produced by an inductor is a characteristic of the non-Coulomb electric field (NC) that is proportional to the rate of change in current causing a changing magnetic field. And that is Faraday's Law.
The current is a result of the combination of an opposing Coulomb electric field and the applied field which is changing the current. The opposing Coulomb (C) field is a result of polarization of the inductor by the non-Coulomb (NC) electric field. So, the current is a consequence of the resultant field of the applied field and the Coulomb electric field in the inductance coil and is determined using the governing relation in conductors J = σE_net. If the resistance of the solenoid is very small, the magnitude of the two electric fields is nearly equal (E_C ~ E_NC).
It is not possible in this post to discuss in more detail the formation of the Coulomb field when the current in an inductor is changed.
Before learning Faraday's Law and its application to the operation of inductors, it will be instructive to understand Current, the conduction process and Voltage at the fundamental level as in the following two videos:
i. czcams.com/video/TTtt28b1dYo/video.html and
ii. czcams.com/video/8BQM_xw2Rfo/video.html
The last frame References in video #1 lists textbooks 3 and 4 which discusses topics on inductance and inductors in more detail using a unified approach and provides an intuitive understanding of inductive reactance.
It also describes with sequential diagrams how an inductor develops the induced emf. Textbook 4 shows how the current lags the voltage across the inductor by 90 degrees for sinusoidal input voltages using sequential diagrams.
thanks for the good explanation.
Thank you for dropping a comment!
@@MrRuelTuition by the way can you give an explanation on transistors, it'll be helpful.
Awesome video...but i have a question.
So whenever we try to move the magnet into the coil....the direction of the induced current is such that it opposes the chang causing it....but we are able to move the magnet into the coil eventhough the direction of the coil is opposing....is it because we are applying more force to push the magnet through?
An object can continue moving when two forces of equal magnitude act on it in opposite directions. The acceleration will be 0 but the object can continue moving at constant velocity in the same direction.
@@MrRuelTuition ohh i understand..tqsm🤗
❤️❤️❤️
Thx so much am convinced now
You're most welcome. 😊
But why a changing magnetic flux needed to induced emf to the conductor?
It is really helpful
Thank you for taking the time to comment! I'm glad it was helpful 😊
Sir what is the definition of emf in simple words
Remember it in three parts:
1. Energy
2. To move 1 Coulomb of charge
3. Around a complete circuit
Sir is induced emf and emf is same?
It is not the same. Induced EMF is only used when the EMF is induced by changing the magnetic flux linkage of a conductor. But there are other sources of EMF such as batteries. These provide EMF too but we don't call it induced EMF.
Even studying faraday law.... I was tnsed that.... I have to study induced current and emf seperate 😳
Without induced emf there will be no induced current. It would just be...current. Don't worry it will click when you piece it together.
Sir I think u r indian and video must be somewhere in hindi as most of students belongs to India and india is such a country where hindi is best way to understand anything rather than English best explanation ❤️
Hello. Thank you for dropping a comment! Unfortunately I'm Malaysia Indian and I do not speak Hindi. Hopefully you still enjoy my videos in English.
@@MrRuelTuition it's ohk sir❤️
why the hell do you have a chinese accent 😂 😂 😂