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Unformatted text preview: discussed later). tsl250 p.1/2 Lenzs Law (2) In the situation shown below the current induced in the conducting ring generates a magnetic field whose flux counteracts the change in magnetic flux caused by the bar magnet. Moving the bar magnet closer to the ring increases the magnetic field ~ B 1 (solid field lines) through the ring by the amount ~ B 1 . The resultant change in magnetic flux through the ring induces a current I in the direction shown. The induced current I , in turn, generates a magnetic field ~ B 2 (dashed field lines) in a direction that opposes the change of flux caused by the moving bar magnet. tsl251 p.2/2...
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- Spring '07