Potentiometer Comparison of EMF MeitY OLabs

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This video channel is developed by Amrita University's CREATE • http://www.amrita.edu/create • ▶ For more Information @ • http://amrita.olabs.edu.in/?sub=1 brc... • ▶ Amrita Online Lab Project Website • http://www.olabs.edu.in/ • ▶ Subscribe @ • / amritacreate • ▶ Like us @ • / createatamrita • • Copyright © 2017 Amrita University • Developed by Amrita University CDAC Mumbai. Funded by MeitY (Ministry of Electronics Information Technology) • Potentiometer : Comparison of EMF :- • Potentiometer is a simple device used to measure the electro motive force, potential difference across a resistor and internal resistance of a cell. It consists of a board where a tungsten or manganese wire is fitted on it. The wires have uniform cross-sectional area and of 10 m in length. The wires are joined in series by using thick copper strips. A metre scale is also attached on the wooden board. It works on the principle that the potential dropped between two points in a wire of uniform cross section is directly proportional to the distance between the points. • This video explains how to compare the emf’s of two given primary cells using a potentiometer.

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