Lesson 4 Electromagnetism – We learned about what affects the strength of an electric current created by a magnet. We looked at the speed of rotation of a coil as well as other factors that affect the electric current produced by an electric generator. Then we looked at the strength of the magnetic field produced using electromagnets. Then we looked at the number of coils of wire and the number of loops in each coil. Next, we explored the orientation of the magnet with respect to the wires which also affects the amount of current.