Tuesday 30 August 2011

FARADAY'S LAW OF ELECTROMAGNETIC INDUCTION

“The induced emf. produced in a closed circuit ( or a coil ) is equal to the negative of the rate
of change of magnetic flux linked with it.”
Thus, average induced emf. produced, < e > = - N( Flux) / time
and the instantaneous induced emf. at time t, e  = - lim N (Flux) / time = - N ( d Flux / d time)
that is the derivative of Flux with respect of time
where, N = number of turns of the coil,

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