Potentiometer For Physics Lab

A potentiometer is a precision instrument used in physics to measure voltage without drawing current from the circuit. It consists of a variable resistor with a sliding contact that adjusts the resistance, allowing for accurate voltage measurements by comparing the unknown voltage to a known reference. Potentiometers are commonly used in experiments to determine the emf (electromotive force) of a cell, calibrate instruments, and adjust settings in electrical circuits. Their ability to measure voltage without influencing the circuit makes them highly valuable in precise electrical measurements.

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