Principle used in potentiometer

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1

Basic principle used in potentiometer is that the unknown emf is measured by comparing it with a standard known emf.

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2

A potentiometer is an instrument for measuring the potential (voltage) in a circuit.

Potentiometer

Before the introduction of the moving coil and digital volt meters, potentiometers were used in measuring voltage, hence the ‘-meter’ part of their name.

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