Shop

The motor consists of a two pole armature mounted between the ends of two bar magnets. The armature has a two section commutator and a pair of slip-rings on its shaft and is so constructed that the wire cannot slip off the iron core. The upper bearing and brushes for the commutator are mounted on a strong upright. Separate brushes are provided for the commutator and for slip rings and each are connected to a terminal. The magnets are held in position by thumb screws.

Glass sphere having two side disc electrodes and set of mica vanes placed on a vertical spindle rotating under impact of cathodes rays. The vanes start moving in opposite direction if polarity of current is changed.

Open ended glass tube, 75 x 25 mm fitted with 2 carbon electrodes through a rubber cork, separated by a plastic sheet, complete with two collecting tubes of size 75 x 10 mm.

This apparatus demonstrates the magnetic field patterns associated with the different shapes of current carrying conductors. Comprises three conductors, each of different shape/configuration – straight rectangular, circular loop and solenoid – all mounted on a plastic base. Each configuration is provided with a pair of 4 mm sockets to connect them to a low voltage DC power source, with output current not exceeding 5 A. With the included iron filings and 8 magnetic compasses, you can investigate the associated field and flux patterns.