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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2017
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A potentiometer is an accurate and versatile device to make elechical measurements of E.M.F. because the method involves :

$\begin{array}{1 1} (1) cells\\ (2) potential \;gradients \\ (3) \text{ a condition of no currenl flow through the galvanometer} \\ (4) \text{a combination of cells, galvanometer and resistances} \end{array} $

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