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What is a Variable Resistor? A Comprehensive Guide

A variable resistor, also known as a potentiometer, is a fundamental electronic component that allows manual control over the amount of resistance in an electric circuit. Its primary function is to regulate the flow of electric current by adjusting the resistance, enabling precise control over voltage, current, or signal levels.

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Cathode Ray Oscilloscope(CRO) Working and Important Applications

A cathode ray oscilloscope (CRO), also known as an oscilloscope or scope, is a widely used electronic test instrument that allows you to visualize electrical waveforms. It is particularly useful in the field of electronics, telecommunications, and physics for observing and analyzing various types of electrical signals.