A Potentiometer is an instrument for measuring an unknown e.m.f. or Potential Difference by Balancing It,whole or in part,by a known potential difference produced by the flow of a known current in a network of a circuit of known charactersticks.
Technical Specifications:
(i) Range : 0 – 1.8 Volts in two stages
(ii) Range Multiplier : ×1 —-0 to 1.8 Volts ; ×0.1 ——0 to 0.18 Volts
(iii) Smallest direct reading : 0.0002 Volts
(iv) Smallest reading with multiplier: 0.00002 Volts
(v) Resistance : 11 Ohms/Volt
(vi) Accuracy on the normal range : 0.0001 Volt
(vii) Inter range accuracy : 0.01%