10/26/2021 0 Comments Dc Crompton Potentiometer Pdf
The long slide wire is awkward, and even for the length shown cannot be read to a very great degree of precision. TheUnit I-Potentiometers Introduction to potentiometers Construction details of potentiometer Standardization of Potentiometer Cromptons Potentiometer Multirange Potentiometer Vernier potentiometer Applications of DC potentiometers SelfThe slide-wire type of potentiometer described in the previous article is not a practical form of construction. The galvanometer resistance is 20. 5 a) With the help of a neat diagram, explain how a DC Crompton potentiometer is standardized and used to measure the current and voltage b) A slide wire potentiometer of 150 cm in length has a resistance of 150 , the working battery has an emf of 4.2 V and negligible internal resistance.
![]() ![]() This means that current through the galvanometer will always be proportional to the out of balance current whatever may be the setting of the main dials. The value of the compensating resistors is such that the resistance of the potentiometer circuit, as viewed from terminals, where the unknown emf is applied, remains constant irrespective of the position of the sliding contacts. A centre zero type galvanometer is included in the circuit to indicate deflection.The galvanometer circuit includes a set of compensating resistors R 1, R 2.
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