Showing the circular motion of electrons in the magnetic field of a Helmholtz coil using a gas-filled glass tube.
Explanation of how electrons are used to make an image on a TV screen, with a demonstration showing that a magnet will distort this picture when placed near the screen.
Using an electron gun and a magnet to show that the path of an electron will curve in the presence of a magnetic field.
Tracking the motion of electrons and alpha particles in a cloud chamber.
Finding the force a magnetic field exerts on a current-carrying wire, with a demonstration of a wire jumping in a strong magnetic field.
Creating a motor from a current loop where the current is manually reversed after every 180° of rotation.
Finding the direction of the magnetic field created by a current-carrying wire, with introduction to the right hand rule and a demo of a compass needle responding to the current through a wire.
Forces felt by two parallel current carrying wires, when the currents are in the same or in opposite directions. Includes a demonstration of these forces.
Using iron filings to view the magnetic field of a loosely wrapped solenoid, and using a Hall probe to measure the magnetic field inside and around a tightly wrapped solenoid.