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CBSE Class 12-science Answered

hey.. If potential gradient of a potentiometer P is greater than potentiometer Q which should be chosen for comparing emf of two cells?
Asked by Yug Rawal | 26 Feb, 2015, 06:06: PM
answered-by-expert Expert Answer

Hi Yug,

Potential gradient of  a potentiometer means the potential difference per unit length of the wire of a potentiomater. Smaller the potential gradient, better its sensitivity.

Hence the potentiometer Q will be used to compare the emf of two cells.

Answered by | 26 Feb, 2015, 06:17: PM

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