Magnetic Force Accelerator

A ramp with metal sides is filled with permanent magnets, North Pole up, covered with a large label. Three Aluminium tubes of different diameters can be placed in turn across the ramp, connecting the metal sides. A 12 V DC voltage is applied to the sides of the ramp so that a large current flows (up to 15 A). The Aluminium tube is immediately accelerated rapidly along the ramp and shoots off the end, breaking the circuit. As well as confirming the Right Hand Rule, students can observe the difference in the current drawn by the tube when the ramp is horizontal and when one end is raised using the included wooden prop. Requires a power supply that can deliver 12 V DC / 15 A, not included.