Magnet - Wikipedia, the free encyclopedia
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A magnet (from Greek magnḗtis líthos , "Magnesian stone") is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property ...
en.wikipedia.org/wiki/Magnet
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The magnetic field produced by currents in wires ... The force on a charged particle in a magnetic field ... The magnetic field is a vector, the same way the electric field is. The electric field at a particular point is in the direction of the force a positive charge would experience if it were placed at that point.
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physics.bu.edu/~duffy/PY106/MagField.html
physics.bu.edu/~duffy/PY106/MagField.html
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Ask the experts your physics and astronomy questions, read answer archive, and more. ... If it existed, it would be a particle responsible for the creation of a magnetic field absent an electric current. To the specific question of where are the moving charges in the iron atoms of a magnet, there are two sources.
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www.physlink.com/Education/AskExperts/ae10.cfm
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The magnetic field from a such current-carrying wire actually wraps around the wire in circular loops, decreasing in magnitude with increasing distance from the wire. To find the direction of the field, you can use your right hand.
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www.cartage.org.lb/en/themes/Sciences/Physics/Electroma...
www.cartage.org.lb/en/themes/Sciences/Physics/Electromagnetism/Magnetostatics/MagneticField/howtomakemagnetism/magneticfield/magneticfield.htm
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The current produces a magnetic field that can be used, for example, to control a computer hard drive or to sort scrap metal (Figure 28-1). In Chapter 29, we discuss the magnetic field due to a current. ... 28-2 What Produces a Magnetic Field...
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www.lowellphysics.org/beta/resources/CH28/S2/c28x28_2.x...
www.lowellphysics.org/beta/resources/CH28/S2/c28x28_2.xform.html
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Back to the first slide ... View text version...
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www.yale.edu/ee100/class15/sld009.htm
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a) Indicate the direction of the magnetic field associated with the wave at "A" at time t = 0 s. (3 points) ... The direction of the magnetic field is determined by using a right-hand rule where your thumb is the electric field, your first finger is "B" and your second finger is the direction of propagation of the wave.
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www.uic.edu/~halliwel/102/examinations/m_1/02
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