At every point in space surrounding a magnet, a moving charge, or a wire carrying current there is a force field called the magnetic field; denoted by the symbol B.
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www.ac.wwu.edu/~vawter/PhysicsNet/Topics/MagneticField/...
www.ac.wwu.edu/~vawter/PhysicsNet/Topics/MagneticField/MField.html
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Magnetic Field Geometry ... Magnetic field lines are very different from electric field lines because magnetic sources are inherently dipole sources with North and South magnetic poles. The magnetic field lines form closed loops and any closed surface will have a net zero number of lines leaving the surface.
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hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/magnetic/m...
hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/magnetic/magforcon.html
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Magnetic fields are produced by electric currents, which can be macroscopic currents in wires, or microscopic currents associated with electrons in atomic orbits. The magnetic field B is defined in terms of force on moving charge in the Lorentz force law. ... Index; Electromagnetic force; Magnetic field concepts...
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hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magfie.htm...
hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magfie.html
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A magnetic field B can be associated with the magnetic force. The magnetic field at some point in the vicinity of a moving charge can be determined by placing a test charge at that point and moving it with some velocity v. The test charge will experience, besides the electric force, a magnetic force Fmag.
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teacher.nsrl.rochester.edu/phy122/Lecture_Notes/Chapter...
teacher.nsrl.rochester.edu/phy122/Lecture_Notes/Chapter30/chapter30.html
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That a magnetic force field surrounds the Earth and protects us from very small space invaders? ... The Earth's magnetic field looks similar to that of a bar magnet. Other magnetic fields in our solar system (mainly from the sun) cause the pattern to flatten on the sunward side and expand into a large comet-like tail on...
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www.space.gc.ca/asc/eng/educators/youknow_answers.asp
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Magnetic Force and Electric Field Problems ... Magnetic Force: You've just learned about the earth's magnetic field and how a compass works and you are relaxing in front of the TV. Tired of your show, you think about how the picture tube works in relation to what you have learned.
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www.physics.umn.edu/groups/physed/Research/CRP/on-lineA...
www.physics.umn.edu/groups/physed/Research/CRP/on-lineArchive/crmff.html
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Electro magnetic force field is suggested in this colorful conceptual abstract featuring a stylized radio frequency identification transmitter coil at the center stock photography by Stock Connection RM. JGK1700 Fotosearch Stock Photography and Stock Footage helps you find the perfect photo or footage, fast! ... Add to Lightbox...
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www.fotosearch.com/STK013/jgk1700/
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A strong-magnetic-force field generating device is provided which can increase a magnetic force field and which can make the magnetic force field spatially uniform without adding an additional superco ... In the strong-magnetic-force field generating device, a disc ferromagnetic element is arranged inside a bore and above...
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www.freepatentsonline.com/7286033.html
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A force field separator which utilizes magnetic fields to separate materials which are sensitive to those forces. As a magnetic separator it separates paramagnetic and diamagnetic materials with lower ... 1) Field of the Invention ... Magnetic force fields can be created by electric currents and are known a magnetic fields.
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www.freepatentsonline.com/6193071.html
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