For measuring the force between a current-carrying conductor and a magnetic field. The equipment consists of a system of 6 permanent magnets, a holder for the conductors and six conductors of lengths 8, 6, 4, 3, 2 and 1 cm. The holder tilts for quick swapping of the conductors. Measurement requires a balance with a 0.01 g resolution (e.g. 102950) and a power supply such as 364000. Current through the conductors: 0-5 A DC. Supplied without a balance, power supply or stand hardware.