I am currently studying for a Magnetism and Electricity exam coming up. I was just wondering, within the topic of Electromagnetic induction; my textbook states that if an armature coil of some sort -either from an AC or DC generator was placed horizontally into a magnetic field that is also horizontal, (so the North pole on the left and south pole on the right, meaning the magnetic field lines would be going --->), then the EMF would be at a maximum. If the coil was vertical the EMF would be a minimum. This picture may explain it better: http://www.rfcafe.com/references/El...ourses/images/electricity-navy-basics-126.jpg I unfortunately don't understand this and there is no further explanation other than those statements. Could somebody please explain to me why the EMF would be a maximum when the armature coil is horizontal. Relevant formulas EMF = BLV EMF = -(N*Δϕ)/Δt Thank you for your time.