Answer / k.prakashchandra

It starts with Faraday's law of induction i.e.V = N x d.
flux /dt.If the flux is purely sinusoidal,the relationship
is given by the universal EMF law E peak=2 pi x f x peak
flux x N.If you divide this by root 2 ,you get Erms nearly
equal to 4.44 x f x flux x N.

Answer / aj

sqrt(2)*pi see http://info.ee.surrey.ac.uk/Workshop/advice/coils/Faraday/index.html for derrivation

Answer / shaikh_mohammedfarhan

U Can't change in eqition

Answer / usman

this is an empirical relation. u cann`t justify this . if u want to know where it came from u should see its derivation

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