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March 7th, 2011, 04:31 AM  #1 
Senior Member Joined: Oct 2009 Posts: 895 Thanks: 1  How can a changing magnetic field induce an electric current
Hi all, How can changing magnetic field to induce an electric current ? Can you give me Faraday’s law, in simple words ? 
March 7th, 2011, 09:14 AM  #2  
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,204 Thanks: 511 Math Focus: Calculus/ODEs  Re: How can changing magnetic field to induce an electric cu
Faraday's law of induction states: Quote:
where is the magnetic flux threading the circuit which can be expressed as: This integral is taken over the area bounded by the circuit. The meaning of the negative sign in the equation for is a consequence of Lenz's law.  

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