PhysicsCode 9702
Magnetic fields due to currents
What this topic asks you to be able to do
- sketch the magnetic field pattern produced by the current in each of these: a long solenoid, a long straight wire and a flat circular coil
- appreciate that a ferrous core strengthens the magnetic field produced by the current in a solenoid
- account for the origin of the forces acting between current-carrying conductors and work out which way those forces point