Apparatus to Show Force on Conductor in Magnetic Field

Comprising a strong U-shaped magnet and a pair of brass rails with 4mm socket terminals. Fitting in wooden frame. Size 175 x 60 x 58 mm

Comprising a strong U-shaped magnet and a pair of brass rails with 4 mm socket terminals. A brass axle with plastic discs is free to roll along the rails and completes the electrical contact between them. When the axle is placed on the rails between the poles of the magnet and power supply unit is connected, the axle is repelled and rolls along the rails away from the center of magnetic field. Dimensions 175 x 60 x 58 mm