Thank you so much. Your explanations are amazing. You make it so clear and easy. Way better than my teacher. Not only did it help me but a day before the test a few classmates asked me to help them with their concepts. And I explained them the whole thing like you did in your video. And now they feel that I explain stuff better than our teacher. So yeah, I stole a little credit. But thanks
Your video have literally saved my life, thank you sooo much for your work, it was so well explained and so easy and simple to follow, I can not thank you enough :)
very good discussion,but i have a question what is the difference between the between the conductor and the plane of the conductor i reads in a reference when the plane of the conductor normal on the magnetic lines the conductor parallel the magnetic field and vice verse
For larger scale, that is way more difficult and a lot of work as the magnets are probably very heavy and bulky to spin - so it isn't really done that way.
Thankssss alot you are truly amazing this helped me alot thank you again I just wanted to ask do u have a video about relay and time-delay circuit and transistors please reply asap
I've been taught doing that only with right hand where thumb indicates force having effect on positively charged particle, index finger indicating the direction to where the particle is moving and middle finger indicating direction of the magnetic field. According to your example at 09.30 the current is moving clockwise in the circuit since I find it moving counterclockwise. If I am moving my right hand over the south pole of the magnet, according to aforementioned finger setup, where my thumb is pointing down and my middle finger is pointing right thus my index finger is pointing forward, the opposite direction than in your example. And in this case my index finger was indicating the movement of a positively charged particle so the current should be going in the same direction. Where did I go wrong?
I'm not sure your system is right. For induced currents we use the right-hand rule and that means that the first finger represents the magnetic field, the second finger represents the direction of the induced conventional current and the farm represents the motion of the wire or coil.
Effectively you are asking the question why does nature behave the way it does. What is it that makes nature act spontaneously. Why does water flow downhill and not uphill. These are questions which are largely covered in thermodynamics and which address the conditions in nature which cause things to happen spontaneously. It is all to do with entropy ultimately and the way in which nature likes to find the lowest energy levels.
I have a quick question. If you pass direct current through a solenoid and fire a copper projectile through the center.. Will the solenoid experience any electrical change what so ever? Just looking at that lenz law copper tube and magnet demonstration and wondering..
It will certainly have some effect albeit briefly. The copper projectile will behave a little like an iron core placed at the centre of the solenoid. Moreover it is likely that eddy currents will flow in the copper projectile.
Hi there, mocks coming up soon and these videos are excellent--thank you! Quick question, I don't understand the difference between what the slip-ring and the split-ring commutators do? Both alternate the current don't they?
Consider diagram at 9:43. Note current flows down RH wire and up the LH wire. Now if we arrange for the wire which is for the time being the RH wire always to connect with the RH commutator then the current always flows in one direction (DC) albeit varying from 0-Vmax). If on the other hand the RH wire always connects to the RH commutator (even after if has moved through half a rotation) then the current will flow one way and then the other (AC). In the former case (DC) you need a split ring. In the latter (AC) you need a slip ring.
Ethan Luc No. I mean that in the first case the wire which happens to be on the RHS will connect to the RH commutator. This will change every half a revolution. In the other case the RH wire will connect to the RH commutator at all times (even when it becomes the LH wire half a revolution later).
7SzK7 The slip (or in the other case split) rings are there so that the connecting wires are not continually twisted. The rotating coil needs to be able to connect with static connectors.
I like your videos, you explain much more clearer than my teacher😂
love u....saved my life...this was the hardest topic for me , made easier by your hardwork...thankyou so much sir
Allah blesses you, you are a legend.
Yes he isss
what a fantastic set of videos
have been a great help with my dc for GCSEs and also helped me understand stuff I didnt get 30+ years ago
I love you man, mostly because of your accent
Thanks for explaining this so well!
Awesome video!
a very nice explanation for a challenging topic... Thanks!
Thank you so much, this video will save my life!
You have explained this so well. Couldn't of asked any more simpler.
Keep up the good work :)
First time to see one of your videos and simply wanted to say Thank you so much for the ease of explanation and the simplicity =)
Excellent video, thanks!
Thank you sir! Now I finally understand AC generators :D
man the way you explain is just love. thoroughly enjoyed every bit of this lecture. such a congenial voice you have 👌👌👍
Thank you so much. Your explanations are amazing. You make it so clear and easy. Way better than my teacher.
Not only did it help me but a day before the test a few classmates asked me to help them with their concepts. And I explained them the whole thing like you did in your video. And now they feel that I explain stuff better than our teacher. So yeah, I stole a little credit. But thanks
i love your videos always
a well deserved subscribe and more people should know about this
Your video have literally saved my life, thank you sooo much for your work, it was so well explained and so easy and simple to follow, I can not thank you enough :)
+Mahira Choudhary you suck up quite a lot don't you hahahahaha
Thanks. Kind of you to say so.
That So good
thank you so much. I now understand about the LHR and RHR . And also about the motor and generator.
ohhhhhh I realy liked the video thnk sooooo much
Thanks for your hard work. Great explanation!
I like your videos a lot, they are so helpful.
Very useful..
Helped a lot, thanks
saved my life, thanks a lot!
You're welcome. Hope the exam goes/went well.
thank you! helped me a lot :-)
Best teacher
very good discussion,but i have a question what is the difference between the between the conductor and the plane of the conductor i reads in a reference when the plane of the conductor normal on the magnetic lines the conductor parallel the magnetic field and vice verse
really awesome
what if we just spin the magnet instead of using commutator
For larger scale, that is way more difficult and a lot of work as the magnets are probably very heavy and bulky to spin - so it isn't really done that way.
Thankssss alot you are truly amazing this helped me alot thank you again I just wanted to ask do u have a video about relay and time-delay circuit and transistors please reply asap
Wouldn't it be dc? or a sinewave with the lower half mirrored?
No.
I've been taught doing that only with right hand where thumb indicates force having effect on positively charged particle, index finger indicating the direction to where the particle is moving and middle finger indicating direction of the magnetic field. According to your example at 09.30 the current is moving clockwise in the circuit since I find it moving counterclockwise. If I am moving my right hand over the south pole of the magnet, according to aforementioned finger setup, where my thumb is pointing down and my middle finger is pointing right thus my index finger is pointing forward, the opposite direction than in your example. And in this case my index finger was indicating the movement of a positively charged particle so the current should be going in the same direction. Where did I go wrong?
I'm not sure your system is right. For induced currents we use the right-hand rule and that means that the first finger represents the magnetic field, the second finger represents the direction of the induced conventional current and the farm represents the motion of the wire or coil.
Thank you sir!
Why does a pd induce a current? Why does a difference in word done per coloumb cause electrons to flow around the circuit?
Always wondered this
Effectively you are asking the question why does nature behave the way it does. What is it that makes nature act spontaneously. Why does water flow downhill and not uphill. These are questions which are largely covered in thermodynamics and which address the conditions in nature which cause things to happen spontaneously. It is all to do with entropy ultimately and the way in which nature likes to find the lowest energy levels.
I have a quick question. If you pass direct current through a solenoid and fire a copper projectile through the center.. Will the solenoid experience any electrical change what so ever? Just looking at that lenz law copper tube and magnet demonstration and wondering..
It will certainly have some effect albeit briefly. The copper projectile will behave a little like an iron core placed at the centre of the solenoid. Moreover it is likely that eddy currents will flow in the copper projectile.
I like your videos. Why did you stop uploading videos???
Hi there, mocks coming up soon and these videos are excellent--thank you! Quick question, I don't understand the difference between what the slip-ring and the split-ring commutators do? Both alternate the current don't they?
Consider diagram at 9:43. Note current flows down RH wire and up the LH wire. Now if we arrange for the wire which is for the time being the RH wire always to connect with the RH commutator then the current always flows in one direction (DC) albeit varying from 0-Vmax). If on the other hand the RH wire always connects to the RH commutator (even after if has moved through half a rotation) then the current will flow one way and then the other (AC). In the former case (DC) you need a split ring. In the latter (AC) you need a slip ring.
DrPhysicsA hi, in both cases you've made the RH wire connect to the RH commutator. Is that a typo?
Ethan Luc No. I mean that in the first case the wire which happens to be on the RHS will connect to the RH commutator. This will change every half a revolution. In the other case the RH wire will connect to the RH commutator at all times (even when it becomes the LH wire half a revolution later).
DrPhysicsA Ah, I see. Many thanks!
What would happen if the slip rings weren't there? Are they just there to connect the induced emf/current to a circuit or for coil rotation reasons?
7SzK7 The slip (or in the other case split) rings are there so that the connecting wires are not continually twisted. The rotating coil needs to be able to connect with static connectors.
this is good
could you explain edy current and devices
thanx
thank you so much, my teacher is crap
How can the wire change sides?
+pashwa shah It is on a spindle or axis so it can rotate.
I love you