Latest developments in the world of physics
June 16, 2010 by Actaphysica
Filed under Archive
Download: hilaroad.com Instructions for constructing and electromagnet and an investigation of magnets and the relationship between electricity and magnetism.
Video Rating: 4 / 5
An educational video clip regarding induction through electromagnetism. Source- www.shep.net
Video Rating: 4 / 5
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That’s correct. The earth’s north pole is actually the magnetic south pole.
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QUESTION:If the “north part” of the magnet is attracted towards the earth’s north pole does it mean that the “north part” is actually the south part? opposite attracts and same repel right?or the north pole of the earth is actually the south?
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very nice video….
few other facts:
there are elctro magnets, permenants magnets and time magnets (lose power as longer time goes)
and also the world has an electric-magnetic “stipes” going from south to north and those stripes are attracting the needle of the compus not the north pole
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The magnetic cloud takes some time to dissipate.
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The nail made frm hard magentic material. Hard magnetic material is more difficult to get magnetised but if you connect the circuit long enough for it to be magnetised then it will retain its magnestism even if the circuit is broken. Hence the nail is able to attract the paper clip. Steel is an example of a hard magnetic material.
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He wasn’t clueless, he just didn’t know the intricacies of what he had discovered. Just like we are all aware of gravity and its effects but we have yet to discover the “graviton”.
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TNX!! dude super Cool
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No. Oersted did his experiment in 1819. Electron was discovered in 1895. So, Oersted was clueless what he discovered.
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was the electron discovered when the danish guy discovered how electricity and magets connect?
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What you saw there is called ‘residual magnetism’. Some of the magnetic flux remains in the iron core (nail) even after the coil current has been disconnected. This occurs because it is possible to magnetise certain materials.
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I noticed that even when the circuit was broken, the nail didn’t lose its magnetic character. 9:20. What’s the explanation for this? Does it take time for an electromagnet to lose its magnetic lineament, once the circuit is broken?
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Thank you very much! Very professional!!
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Nice! thanks!
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Excellent! Thankyou.
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very interesting!!
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really good video. Thank you for putting this up. Really appreciate it.
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I know this isnt related but I need advice on how to get my invention idea tested and pattend, because it will be hard because im a kid.
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If you have a lighter you can burn the insulation off.
I like that trick with the rubber band.
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nice and intuitive
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thank you so much this movie is very informative
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Thank you very much very helpful but, I went onto your website and I was trying to find out how to make the switch to turn it on and off so could you please tell me how to make it. Thanks
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thank you. very professional,excellent.
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does it matter if the wire closest to the flat part of the nail is connected to the positive end of the battery and the wire closest to the pointy end of the nail is connected to the negative end of the battery? i really hope someone could answer that.please?
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Excellent! Thankyou.
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looked like a buffalo nikel
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@Aasmaema I was totally wondering that too… did you ever end up finding out if that`s correct?
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I knew most of this from young! Everyone should have known this from primary school, also thought about water movements and other materials that can conduct electricity because if it can conduct electric it can be used with magnets in some way. The real secret stuff they never seem to wanna give out is the use and location of organic fuel like some forms of gases and liquids, like i know a lime or lemon can produce electric depending on the metals attatched to the inner citrus of the fruit..
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7:43
But won’t N attract S??
I’m
Confused cab someone explain this to me in laymans terms
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@Aasmaema what happens is when the the two same poles meet and repel away from each other the iron core with wires raped around have a different charges. once the core is further away from the magnetic fields
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@coldfierynite18 are you stupid??
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@Aasmaema lol. actually, they are correct. The Earth’s North Pole is actually a South Pole. When this was realised, the top science people of the day decided not to bother renaming the poles, and now we’re stuck with mixed up names.
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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,
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Michael Faraday??
Now I know who the professor Daniel Faraday on Lost was named after!
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excellent
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men are stupid!! go feminazis go!!
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that spinning part is being spun by the force of water or steam i think
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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.
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I don’t get lenz’s law. what does it mean by “Opposing the orginal movement”?
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I WONDER IF ANYONE HAS SOME SCIENCE PROGRAMS THAT WERE MADE FROM TVONTARIO LIKE THIS ONE CAN YOU UPLOAD ALL TVONTARIO 6×10 MINUTE COMPUTER SCIENCE & MATHEMATICS PROGRAMS JUST LIKE THIS ANIMATION MADE BY TVONTARIO SUCH AS CONIC SECTIONS, VECTORS, TRIGANOMIC FUNCTIONS 1&2, PHOTOSYNTHESIS, CHEMICAL EQUILIBRIUM, STRUCTURE OF THE ATOM, PUT IN HIGH QUALITY PICTURE & SOUND HOPE ANYONE HAS ANY OF THOSE THANKS
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thank you Nikola Tesla , and the video maker, and user for teaching us about AC
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watching videos are far better then reading the books; it induces my eyesight
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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.
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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…
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okay, my bad
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It wasn’t funny. It was retarded.
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it was meant as a joke, but if you didnt get it, im deeply sorry…
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You should rather study spelling instead of pointing out spelling errors. Jackass.
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@charliebravo7 lol:P
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@charliebravo7 ha ha its cause i had to type on my ipod
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u sould rather study spelling instead of physics…
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