This compact and inexpensive potentiometer is ideal for introducing students to the method and techniques of e.m.f. measurement. The design is simple and accurate measurements can be done with it. There are either 10 or 14 or 22 coils arranged on a rotary dial plus a linear slide wire 50cm long and subdivided into 500 equal parts. Terminals for battery, galvanometer and test circuits are provided on the panel. Athick knife edge jockey is provided to make contact on the slide wire. Supplied with range switch of 0.1 & 1.
a) Potentiometer Dial Pattern with 10 coils.
b) Potentiometer Dial Pattern with 14 coils.
c) Potentiometer Dial Pattern with 22 coils.
Addition of Range Switch 0.1, 1 in Dial pattern potentiometers of Cat.
No. 940 to make it more precise instrument.