Potentiometers and Trimmers are adjustable resistors used to vary resistance in a circuit, allowing for fine-tuning of voltage and current levels. Potentiometers are commonly used in volume controls, light dimmers, and sensor calibration, while trimmers are used for precise adjustments in more permanent circuit setups. These components are crucial for adjusting and optimizing circuit performance.

With their ability to provide smooth and precise control over resistance, potentiometers and trimmers are used in a wide range of applications, from audio equipment to industrial control systems. For electronics enthusiasts and professionals alike, these adjustable resistors are essential tools for circuit tuning and calibration.