http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_s05_qp_4.pdf(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

6b

2. Relevant equations

flux linkage = BA

B=F/iL

3. The attempt at a solution

from my understanding, if B=F/iL , if the current is zero, shouldnt B be infinite,hence phi infinite or something? As seen in the 1st graph. Why does the graph follow a sine graph instead of phi(max)sin(wt)?

Also, can anyone explain why the phase difference is 90 deg instead of 180? i thought the EMF curve would just follow a cos curve because of the negative sign of faraday's law, hence 180 phase difference.

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# Homework Help: Transformer, flux linkage and emf short question

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