@Thisisnotmyrealname8 Right! At 7:14, the video gives many the first impression of an electric motor. But this is without the coil being powered. So we are seeing the back EMF generated by the coil passing by the magnet. Thus 7:14-8:49 is actually the mode of an electrical generator. Thus, one must apply a force to sustain motion. Force it closer, then the magnet induces a repelling field. Force it away, then the magnet induces an attracting field. In both situations, it generates electricity.
@Aasmaema I think the video is correct. The magnetic attraction between the N and S, and the magnetic opposition between N ans N or S and S, both create the induced magnetic field. You need the change from this "second" magnetic field in order to produce current within the armature. So the applied magnetic field depends on it to produce current.
At 5:52 , this video is wrong, yes the pole of north and south of the coil is CORRECT, as this is how the coil trys to oppose the change caused by the magnetic field of the magnet, BUT we use RIGHT HAND RULE to determine the direction of the current in th coil, so the direstion should be opposite to that shown in this video!!!
Think of it like a frictional force for induction. It always acts against the motion causing it (the original movement). If the movement of the magnet is originally to the left, the opposing force will be to the right. If it were the other way around, then the induced field would increase the speed of the motion. That would break the conservation of energy principle because you can't increase energy without expending energy elsewhere.
this are the best lessons on the net believe me I've searched everywhere, bu I wonder where is part number 5 , so called academics are just twisted on other videos,
I've built a few circuits, and ya' know, the current never reverses in the secondary unless it reverses in the primary. An inductor works to keep current flowing in one direction. This is equally as true for the primary as it is the secondary. The only reason I can think of for Faraday's results is that the iron ring is carrying an intense eddy current. But, in no transformer I have ever seen does pulsating DC convert to anything but more pulsating DC on the secondary. Inductor A, Inductor B
I'd imagine Tesla would dislike your choice of words here. Tesla's disdain for Edison and DC current was Edison's apparent reliance on redundancy and the "luck" that tends to stem from it.
@dalsenov No physical contact is necessary between the two,It is the disruption of the electromagnetic field which generates the flow of electrons. Thing eats me is if it is possible to create a machine that rotates indefinitely under magnetic repulsion alone.This video shows the problem of the switching poles quite clearly.But I think That could be possibly overcome.The law of Conversion of Energy goes on about closed systems but the universal electron field itself is part of this system.
Permanent magnets interact differently than electro-magnetic fields on a transformer's core. So, what is true for a generator may be different when or while using permanent magnets. Permanent magnets do cause a reversal of current flow when the number of magnetic lines reverses direction through the coil. So, there is a very clear difference and I don't understand why I am the only one that's built a circuit to recognize that.
@Aasmaema The video is right. It depends on which direction the force is applied at the onset of rotation. It can go in either direction. Don't know why you have thumbs up.
so having a magnet moving backwards and forwards to a conductable coil creates a current in the conductable coil and this is called induced current and the process repeated over and over again produces alternating current giving pulses of electricity
Great job! Explaining concepts with written words is so cumbersome and subject to interpretation. Computer graphics is far superior for most people to learn with. Words are so limiting, especially written words. One can learn more efficiently with images. Can I join you? This has been a life long dream of mine.
@Aasmaema That is why you need the driving physical force of the generator, otherwise it would move all by itself and violate several laws of motion and conservation of energy.
At 8.00 picture there's a thing I don't understand: Is there a physical contact between the spinning bar and the conductor? If so,isn't that contact prone to be damaged as a result of the continuous spinning?
Tesla WAS a wizard. His influence is felt in nearly every modern electrical invention. He does have a unit named after him, but he is almost NEVER mentioned in science. He was just too strange for society at the time. Sad :(
@musiclover708 no I suggest YOU watch the video again. Their is an error in the videos production. it should be opposite coming together and then alike to force them apart where as this shows them being forced apart with opposite magnetic forces.
There was hd videos of that serie concepts in science but the poster's account is closed, I had downloaded them before linux erased my partition, no way to find them anymore!
if you notice how the south pole is attracted to the south pole and vice versa for the north poles... isnt this incorrect? since like repulses like and opposites attract...
What makes the poles reverses its polarity? Perhaps you may want to study the work of Edward Leedskalnin in Magnetic Current before you drift away and mislead.
@Aasmaema a magnets poles are only named as such because of the way the point in the earths magnetic field, if you imagine the earth has a giant bar magnet inside the north pole of said magnet would be at the earths south pole! people really need to name things better in science lol
No no no. Your concepts are mixed up. There is NO attraction b/w the south poles. Hypothetically, IF the like south poles were to attract each other, then the magnet would move all by itself through the coil. This would be creation of kinetic energy and since Energy can't be created, the assumption itself is wrong.
The point that your compass points to, often called the 'magnetic north pole', is really Earth's magnetic south--your compass orients to the north because it's geographic north that you're worried about and it happens to align quite well with the true magnetic south. The whole convention is misleading and should honestly be changed.
Of course electromagnetism works, it works on a coil system. If this coil system were regulated one would hav a 24 volt feed into a 12 volt system or vice versa via a joule or insulated coil to its negative eg a non-inducive transformer system. Its not perpetual motion. Its called electromagnetic induction, and it can't leak.
why do they have this crappy annnooooyinng music in this video. It's like providing good information, and then threaten you with insanity if you try to listen to it!!!
This video has enlightened me to the point where i believe i will transcend and become a god
@Thisisnotmyrealname8
Right! At 7:14, the video gives many the first impression of an electric motor. But this is without the coil being powered. So we are seeing the back EMF generated by the coil passing by the magnet. Thus 7:14-8:49 is actually the mode of an electrical generator. Thus, one must apply a force to sustain motion. Force it closer, then the magnet induces a repelling field. Force it away, then the magnet induces an attracting field. In both situations, it generates electricity.
@Aasmaema
I think the video is correct. The magnetic attraction between the N and S, and the magnetic opposition between N ans N or S and S, both create the induced magnetic field. You need the change from this "second" magnetic field in order to produce current within the armature. So the applied magnetic field depends on it to produce current.
At 5:52 , this video is wrong, yes the pole of north and south of the coil is CORRECT, as this is how the coil trys to oppose the change caused by the magnetic field of the magnet, BUT we use RIGHT HAND RULE to determine the direction of the current in th coil, so the direstion should be opposite to that shown in this video!!!
Think of it like a frictional force for induction. It always acts against the motion causing it (the original movement). If the movement of the magnet is originally to the left, the opposing force will be to the right.
If it were the other way around, then the induced field would increase the speed of the motion. That would break the conservation of energy principle because you can't increase energy without expending energy elsewhere.
this are the best lessons on the net believe me I've searched everywhere, bu I wonder where is part number 5 , so called academics are just twisted on other videos,
Great video.
I've built a few circuits, and ya' know, the current never reverses in the secondary unless it reverses in the primary. An inductor works to keep current flowing in one direction. This is equally as true for the primary as it is the secondary. The only reason I can think of for Faraday's results is that the iron ring is carrying an intense eddy current. But, in no transformer I have ever seen does pulsating DC convert to anything but more pulsating DC on the secondary. Inductor A, Inductor B
I'd imagine Tesla would dislike your choice of words here. Tesla's disdain for Edison and DC current was Edison's apparent reliance on redundancy and the "luck" that tends to stem from it.
Thanks! I saw this in my physics class. I have an exam tomorrow and this really helps!
How is life?
in french the hand is the RIGHT hand for the Laplace force, in english, its the left, flemmings one
nice explaination
beautiful realy good and i understood everything .rly good
@dalsenov
No physical contact is necessary between the two,It is the disruption of the electromagnetic field which generates the flow of electrons.
Thing eats me is if it is possible to create a machine that rotates indefinitely under magnetic repulsion alone.This video shows the problem of the switching poles quite clearly.But I think That could be possibly overcome.The law of Conversion of Energy goes on about closed systems but the universal electron field itself is part of this system.
Permanent magnets interact differently than electro-magnetic fields on a transformer's core. So, what is true for a generator may be different when or while using permanent magnets. Permanent magnets do cause a reversal of current flow when the number of magnetic lines reverses direction through the coil. So, there is a very clear difference and I don't understand why I am the only one that's built a circuit to recognize that.
@sexyrejean If I'm not mistaken, you need a copper wire for one end of your "fruit battery" and a zinc wire for the other side. A potato works too...
@Aasmaema The video is right. It depends on which direction the force is applied at the onset of rotation. It can go in either direction. Don't know why you have thumbs up.
@Aasmaema The geographic North Pole is actually the magnetic South Pole and vice versa.
so having a magnet moving backwards and forwards to a conductable coil creates a current in the conductable coil and this is called induced current and the process repeated over and over again produces alternating current giving pulses of electricity
Great job! Explaining concepts with written words is so cumbersome and subject to interpretation. Computer graphics is far superior for most people to learn with. Words are so limiting, especially written words. One can learn more efficiently with images. Can I join you? This has been a life long dream of mine.
nice 80s graphics! very informative video; loads of stuff; thanks for the upload.
@Aasmaema That is why you need the driving physical force of the generator, otherwise it would move all by itself and violate several laws of motion and conservation of energy.
haha this explains AC current much better then anything I've ever read about. Now I know how Tesla discovered AC current it was all luck with magnets.
Chevy Chase did this narration between European vacation and Fletch...
this is awesome
Thx this makes sence now. Ps I am 13 and you explaned it good so I understood
Great video, really needed a summary such as this one! =)
At 8.00 picture there's a thing I don't understand:
Is there a physical contact between the spinning bar and the conductor? If so,isn't that contact prone to be damaged as a result of the continuous spinning?
Attention please everybody, the direction of current at the video from 3:48 to 6:40 is wrong as we use right hand rule .
Tesla WAS a wizard. His influence is felt in nearly every modern electrical invention. He does have a unit named after him, but he is almost NEVER mentioned in science. He was just too strange for society at the time. Sad :(
this is hillarious !
@musiclover708 no I suggest YOU watch the video again. Their is an error in the videos production. it should be opposite coming together and then alike to force them apart where as this shows them being forced apart with opposite magnetic forces.
There was hd videos of that serie concepts in science but the poster's account is closed, I had downloaded them before linux erased my partition, no way to find them anymore!
if you notice how the south pole is attracted to the south pole and vice versa for the north poles... isnt this incorrect? since like repulses like and opposites attract...
I don't get lenz's law. what does it mean by "Opposing the orginal movement"?
The background noise lets me know that I'm really dealing with magnets.
great video
why is the quality of the video so poor?? i hope it becomes better soon...
The end of this videos trippy
but how can you harness the energy created?
"We're very good at plugging things in" - what kind of statement is this?
muy buen video,es mas informacion
although it lacks some Frames per seconds there ¬¬
What makes the poles reverses its polarity? Perhaps you may want to study the work of Edward Leedskalnin in Magnetic Current before you drift away and mislead.
Hey Dude, where is Part 5 on generators?
I need it. So do me a favour and get it up here sharpish Dude.
We're very good at pluging things in :)
the video is inverted "left hand rule!"
@Aasmaema a magnets poles are only named as such because of the way the point in the earths magnetic field, if you imagine the earth has a giant bar magnet inside the north pole of said magnet would be at the earths south pole! people really need to name things better in science lol
a galvanometer has a spring to return it to zero
No no no. Your concepts are mixed up. There is NO attraction b/w the south poles.
Hypothetically, IF the like south poles were to attract each other, then the magnet would move all by itself through the coil. This would be creation of kinetic energy and since Energy can't be created, the assumption itself is wrong.
I hate 240p. Why cant we like just ban 240p?
@charliebravo7 ha ha its cause i had to type on my ipod
The point that your compass points to, often called the 'magnetic north pole', is really Earth's magnetic south--your compass orients to the north because it's geographic north that you're worried about and it happens to align quite well with the true magnetic south. The whole convention is misleading and should honestly be changed.
What the funk, not a word on Tesla?!
i bet i could make 1 phase ac current by
making some type of high speed swiching rig wit the coil in 2:28
Of course electromagnetism works, it works on a coil system. If this coil system were regulated one would hav a 24 volt feed into a 12 volt system or vice versa via a joule or insulated coil to its negative eg a non-inducive transformer system. Its not perpetual motion. Its called electromagnetic induction, and it can't leak.
poor joseph henry...
this is like from 1980
2013 bro...
omg no wonder why im a musician
Fucking miracles...
ok.
ahh ok now i get it... thanks youtube!
haha...
he said redundant-
240p...we meet again...
lol, this guy is totally butthurt that faraday got the credit
@charliebravo7 lol:P
Walnut
why do they have this crappy annnooooyinng music in this video. It's like providing good information, and then threaten you with insanity if you try to listen to it!!!