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lect5420 - other wire so that each must exert a force on...

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Review
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Resistors in Series
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Resistors in Parallel
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Electric Power
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R V R I IV P 2 2 = = =
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Magnets and Magnetic Fields
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Electric current produces a magnetic field!!!
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Direction of Magnetic Field Produced by a Current-Carrying Wire: Right-Hand Rule
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Force on an Electric Current in a Magnetic Field.
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Important: the direction of the force is always perpendicular to the direction of the current and also perpendicular to the direction of the magnetic field.
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Magnetic Field Due to a Straight Wire
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A m T r I B / 10 4 2 7 0 0 × = = - π μ π μ
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Force between Two Parallel Wires
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Each current produces magnetic field that is “felt” by the
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Unformatted text preview: other wire so that each must exert a force on the other. Electromagnetic Induction and Faraday’s Law. Faraday’s Law of Induction Faradey showed that if the number of magnetic field lines (magnetic flux) passing through a loop of wire changed for any reason , a current was produced in this loop. Lenz’s Law An induced current always a magnetic field opposes the original change in magnetic flux. Reflection Law of Reflection The angle of incidence equals the angle of reflection. Real and Virtual Images Thin Lenses...
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