Do we need to know the differential trig relationship of magnetic flux and emf- particularly for Ac generators? (1 Viewer)

[v.tex]

Do we need to know this, or only the relationship in the Physics formula sheet. I know yes, the math is easy, but I am just wondering because I thought physics was made so technically standard guys could do it?



Also Its a bit confusing how flux could also be in terms of sin as it starts from 0, when the formula sheet gives cos.

 

[wizzkids]

This confusion about the definition of in the Module 6 formula sheet keeps coming up every year.
This unfortunate situation has come about from using two different definitions for the angle between the plane of a loop and the B-field vector. In mathematics the vector that defines the orientation of a plane is drawn at right angles (normal) to the plane. This is the definition that we should all stick to. Otherwise the Mathematics syllabus and the Physics syllabus would be in conflict.

Here is another disagreement to be aware of.
If you are working from Jacaranda textbook (you know the one) on page 162 you will see that he has written the motor torque equation as but the HSC formula sheet shows
This unfortunate situation has come about from the authors not using the mathematics definition for the angle between the plane of a loop and the B-field vector.