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 Faradays Law and Lenz's Law


Faraday's Law of Induction

Three Ways to Induce EMF

Changing the Magnetic Flux

Lenz's Law



FB (pronounced phi) is defined as the magnetic flux for a uniform magnetic field


FB = BperpA = BAcosq     where Bperp is the component of B perpendicular to the loop of area A and q is the angle between B and a line

perpendicular to the loop


The angle theta, q q = 90 degrees, flux is minimum (cos q = 0) q = 0 degrees, flux is maximum (cos q = 1)