Magnetic Field of a Dipole
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- เผยแพร่เมื่อ 10 ก.ค. 2014
- 033 - Magnetic Field of a Dipole
In this video Paul Andersen explains how current moving through a loop of wire can act as an analog for a magnetic dipole. Magnetic dipoles (like compass needles) respond to magnetic fields created by other magnets.
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All of the images are licensed under creative commons and public domain licensing:
Black, Newton Henry. English: The Magnetic Field of a Bar Magnet Revealed by Iron Filings on Paper. A Sheet of Paper Is Laid on Top of a Bar Magnet and Iron Filings Are Sprinkled on It. The Needle Shaped Filings Align with Their Long Axis Parallel to the Magnetic Field. They Clump Together in Long Strings, Showing the Direction of the Magnetic Field Lines at Each Point., 1913. Newton Henry Black, Harvey N. Davis (1913) Practical Physics, The MacMillan Co., USA, p. 242, fig. 200. commons.wikimedia.org/wiki/Fil....
"File:Magnetic Field due to Current.svg." Wikipedia, the Free Encyclopedia. Accessed May 29, 2014. en.wikipedia.org/wiki/File:Mag....
"File:The Earth Seen from Apollo 17.jpg." Wikipedia, the Free Encyclopedia, May 29, 2014. en.wikipedia.org/w/index.php?t....
"File:VFPt Dipole Electric.svg." Wikipedia, the Free Encyclopedia. Accessed May 29, 2014. en.wikipedia.org/wiki/File:VFP....
Maschen. English: Electric and Magnetic Dipoles. Top Is the Electric Dipole, Bottom Left Is the Hypothecal Magnetic Dipole Made from to Two Monopoles, Bottom Right Is the "Real" Magnetic Dipole Found in Ordinary Matter., September 3, 2012. Own work. commons.wikimedia.org/wiki/Fil....
User:Sch. English: The Diagram Shows the Magnetic Meridians of the Earth's Magnetic Field. It Is Centered on the Point at Latitude 30° and Longitude -133.16°., April 8, 2014. Computed and drawn by myself, using File:Mercator_Projection.svg and File:Mercator-proj.png for the globe texture. commons.wikimedia.org/wiki/Fil....
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Thank u very much, so useful to me
very good explanation...thanx
If we put a magnet in a magnetic field will align with the magnetic field lines or will it start oscillate like an electric dipole in a electric field?
If I build a diy folded dipole fm antenna to use on my boat will it effect my floating magnetic compass 2 feet away?
you are amazing sir thank you so much for this explaination
Thank you very much!
Though I have a question. I understand an electric dipole aligns in the opposite orientation of an electric field. Does a magnetic dipole align in the opposite or same orientation as a magnetic field? From the start of the video it seemed it would be the same orientation, but then when you were talking about the earth you mentioned that the earth's magnetic field is in the opposite orientation.
Your awsome. Thank you
love it :D
Ever heard about the Currie temperature? If you know what that is you understyand that hot magma has no magnetic field and b/c pressure it wont move inside Earth, it´s only when you brake the crust it can move!
Nice.
HOWS THE WEATHER
Magnetic monopols exist mr. Anderson! I think, if my memory don´t play tricks, that it was back in 2009 it was discovered...
Co isn't copper, of course, that's a slip of the tongue. He means to say cobalt. Copper is not ferromagnetic. Iron, cobalt, nickel. Not copper! :-D
How to achieve 1 tesla or above?
Yes this is why Thoth says don't tell the people from the North or South. The plot thickens.
Can I translate into tamil from india
May Allah bless you.
why magnet monopole does not exist?..does not exist really???
If you put an external charge near a conductor, all the positive charges and negative charges would arrange themselves on opposite sides of the rod to get as far apart as possible. Then, if you cut the rod in the middle, you would have one rod that is totally negatively charged and one rod that is totally positively charged. If you put an external magnet/charge/current near a ferromagnetic rod, there would be a north and a south pole. However, if you split that rod in the middle, the new smaller rod would form a north and south pole also -- there would not be only a north or only a south pole when they are split. I know this was a long time ago lol but hope it helps anyone else who needed more clarification
who’s here because of mr bayona