Description
We’re all familiar with the fact that a magnet has a north pole and a south pole, and that any magnet will exert a force on another magnet. In this video, we’ll look in more detail at how two magnets can interact with one another, the difference between permanent and induced magnets, and how a simple compass allows us to find our bearings. We’ll then go on to look at the magnetic field that is created when an electric current flows through a straight piece of wire or a solenoid (coil of wire).
Key Words
magnetism, magnetic flux lines, pole, solenoid, north pole, right-hand grip rule, south pole, magnetic force, permanent magnet, induced magnet attract, magnetic field line, repel, compass, non-contact force, plotting compass, magnet, lines of magnetic flux
