- Homework Statement
- Pulling a hoop through a uniform B-field
- Homework Equations
- emf = loopintegral (f_pull dot dl)
I can't for whatever reason figure out where the sin(theta) term is coming from in the attached picture of page 306 of Griffiths' 4th edition EM text. The paragraph says it comes from the dot product, but I just don't see where it's coming from.