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 magnets, and power supply unit is connected, the axle is repelled and rolls along the rails away from the center of magnetic field. Dimensions 175x60x58 mm.
We are offering bar breaking apparatus.To show the forces which can be exerted during thermal expansion or contraction. Comprising a heavy cast iron frame 340x120x100mm with slotted end pillars to carry a stout iron bar. The bar is threaded at one end for a large tensioning nut and has holes at the other end to accommodate the cast iron breaking bars. Supplied complete with ten breaking bars.
We are offering conductivity apparatus.The apparatus consists of a fabricated transparent acrylic stand supporting three cells in the form of 50 ml glass beakers.Electrodes are suspended into the cells, each having a low voltage lamp in series to indicate the current flowing. The three cells and lamps, as a group are connected in parallel and provided with a pair of 4 mm sockets for connection to the external supply. The lamps provided will allow operation on a supply of up to 12v d.c. Dimensions are 215mmx155mmx115mm widthxdepthxheight
We are offering conductivity apparatus.Metal rods 150x3 mm. (length x dia.), one each of aluminium, brass, copper, glass and iron, embedded along one side of a metal tank size 150x90x100 mm. (length x width x height).
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