Question

State principal of potentiometer and define its sensitivity . ​

Answer 1

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The principle of the potentiometer is that: For a wire having uniform area of cross section and uniform composition,the potential drop is directly proportional to the length of wire. The above principle is valid when potentiometer is used in comparing the EMF of two cells.It is calculated as V / L, where V is the potential difference between two points and L is the distance between two points. The longer the wire the lesser the potential gradient and the greater the sensitivity of the potentiometer. ❤️

Answer 2

Answer:

the measuring instrument called potentiometers

Explanation:

an instrument is essentially a voltage divider used for measuring electric potential (voltage). potentiometer are commonly used to control electrical devices such as volume control on audio equipment