Hi, I'm working with my granddad on a project to build a (simple!) electricity generating windmill. We're not trying to make the most efficient design possible, just a reasonably efficient design given the simple tools and materials we're using. It's mostly just a project for fun! :) So, we have a setup as in the diagram below. What I'm wondering, is does it make a difference what way the coil of wire is oriented, i.e. if it is rotated 90 degrees in some direction in the design, will a greater EMF be induced in it each time it cuts the magnetic flux of the magnet. (To clarify, the coil is currently oriented so that additional windings will make it grow along the Y axis, looking down at the XY plane, the cross section of the coil will be circular) (Please go easy on me if I'm saying anything moronic, it's been a while since I studied Physics is school, and I did very little of it in college! ;) ) (Oh, the final design will have a full radial array of coils and magnets, if that's any confusion! But my main question is what shape the coil should be ! Thanks! Mark. edit: yep, I know that should be 'propellor', not propeller!