1. Magnetic Field
2. Electric Current
3. Current flows into the page and the magnetic field is clockwise.
4. Magnetic fields around a conductor looking down on the conductor.
5. Starting about a decade after Oersted's discovery, Michael Faraday demonstrated essentially the opposite of what Oersted had found–that a changing magnetic field induces an electric current. Following Faraday's work, James Clerk Maxwell developed Maxwell's equations, formally unifying electricity and magnetism.
