If a loop of wire starts off horizontal, in a magnetic field angled 12º from the normal to the surface of the loop, and then rotates 180º in a constant magnetic field of magnitude B, what is the magnitude of the change in magnetic flux?
Flux = A.B cos theta
The Attempt at a Solution
The way I see it, it should start off as:
Flux = Area x B cos 12º
then rise to its peak when perpendicular to the direction of the magnetic field
Flux = Area x B cos 0º
then down to 0 when parallel,
Flux = Area x B cos 90º
then back to the starting point, hence a overall magnitude change of 0.
Is this correct?