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Unformatted text preview: The induced EMF will produce a current that always acts to oppose the change that caused it . Thumb points in the direction of induced current Flux increasing Fingers point down to oppose the increase B r Induced EMF RH B r Induced EMF Flux decreasing Fingers point up to oppose the decrease RH Examples Illustration Lenzs Law Example: A magnet moving toward a coil Example: A copper ring moving through a magnetic field Magnetic flux through the loop increases (to the right) Induced magnetic field points to the left (to oppose the change) Induced current (Counter-clockwise) Induced current (Clockwise) No current No current No current...
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This note was uploaded on 12/06/2011 for the course PHYSICS 111&112 taught by Professor Unknown during the Spring '11 term at Ohio State.
- Spring '11