What is the function of a potentiometer?
Answers
Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.
for measurement of voltage.
Answer:
The potentiometer is a device used to gauge the unknown voltage by contrasting it with the established voltage. It can be used to calculate the emf and internal resistance of the specified cell as well as to compare the emf of various cells.
Explanation:
A typical cell is linked to the potentiometer, which is essentially just a long, uniform wire. The lengthy wire is really divided into numerous parts, arranged side by side, and joined at the ends by a thick metal strip. A variable resistance (rheostat) attached to the circuit allows the current passing through the wire to be changed. For measuring the potential difference, the resistance can be manually modified. The amount of effort put forth in getting the charge from the first point to the second point determines the potential difference between any two locations in a circuit. There will be current flow in the circuit when there is a potential difference.
The fundamental idea behind a potentiometer is that assuming a wire has a uniform cross-sectional area and a uniform current flows through it, the potential drop across any segment of the wire will be precisely proportional to the length of the wire.
To know more about potential difference, click on the link below:
https://brainly.in/question/19855900
To know more about variable resistance (rheostat), click on the link below:
https://brainly.in/question/23285445
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