http://www.xtremepapers.com/papers/...and AS Level/Physics (9702)/9702_s05_qp_4.pdf1. 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.