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# The sensitivity of a potentiometer can be increased by,A. increasing the emf of the cell.B. increasing the length of the potentiometer.C. decreasing the length of the potentiometer.D. none of these.

Last updated date: 11th Aug 2024
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Hint: The sensitivity of a potentiometer can be found by considering the value of the potential gradient of the system. The smaller the value of $K$, the smaller the potential difference which can be measured by a potentiometer can measure. This will be in relation with the sensitivity of a potentiometer also. This will help you in answering this question.
The sensitivity of the potentiometer can be dependable upon the value of potential gradient $K$. Where $K$ be the potential supplied by the source battery which is divided by the length of wire. As the smaller the value of $K$, the smaller the potential difference which can be measured by a potentiometer can measure and also greater will be the sensitivity of the potentiometer. Therefore, for a certain potential difference, the sensitivity of the potentiometer will be increasing with the increase in length of the potentiometer wire.