Help with this Q! (1 Viewer)

[shehan123]

If i gave you a magnetic flux vs time graph as a positive cosine non phase shifted function, that is its initially at a maximum. What is the induced emf graph?

 

[ishan]

a negative sine function without any phase shift ie.y=-sinx, same amplitudes and period as the flux graph.

 

[shehan123]

a negative sine function without any phase shift ie.y=-sinx, same amplitudes and period as the flux graph.

Why is it not a positive sin non phase shift?, given that faradays law is (- n (change in flux) )

 

[ishan]

my mistake you are right, i forgot when u differentiate cosine you get -sine. and then the -n makes it a positive sin no phase shift