Simply add current via the Genecon to visually demonstrate the relationship between electricity and magnetism. With this electromagnet, your students can more easily visualize the relationship between electricity and magnetism. The large coils are perfect for applying the Right Hand Rule, so students can discover the direction of the magnetic field they cause. The horseshoe-shaped soft iron responds to the field by becoming magnetized only when you supply current. You can connect it to a battery, a transformer, or use the Genecon and have your students measure the amount of force they can create.