Category: Physics Instruments

Cylinderical copper rod about 300 mm length 25 mm diameter, one end containing a steam chamber connected to inlet and outlet tubes, other end of copper rod has cavity connected via thermometer pockets to water inlet and outlet tubes. Through two thermometers supports tubes 75 mm apart are inserted in the rod for finding the temperature at two points. Fitted in teakwood polished case packed with felt with removable front, without thermometers.

Comprising strips of copper, iron aluminium and brass fixed on wooden ring meeting in the centre, outer ends of the strips formed with small cups.

One each wires copper and constantan approximately 305 mm long, twisted and brazed together.

To demonstrate generation of electricity when the junction of two unlike metal is heated.

It consists of 12 pairs of Bismuth and Antimony bars joined together in series with insulation between them. The couples thus arranged are enclosed in a brass frame having two terminals connected to the Bismuth and Antimony poles. Complete with nickel-plated brass cone and mounted on an adjustable stand.

To provide dots on tape at 1/50 or 1/60 second intervals, equal to the frequency of the mains supply. Operates on12 V a.c. It has an electromagnet & a spring loaded armature which vibrates above a support table. Paper tape, drawn through guides on the table is struck by a dotting screw, carried on the armature. A peg on the table is provided to allow full use of carbon paper disc. Fitted on base.