220 Ohm Resistor: A Comprehensive Guide

220 Ohm Resistor: A Comprehensive Guide

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Introduction

A 220 Ohm resistor is one of the most commonly used resistors in electronics. Whether you are an electronics hobbyist, a student, or a professional engineer, chances are you have encountered this component in various circuits. It plays a crucial role in limiting current, protecting components, and ensuring the proper operation of electrical devices.

This article explores the fundamental characteristics, applications, selection criteria, and practical uses of a 220 Ohm resistor.

What is a 220 Ohm Resistor?

A 220 Ohm resistor is a passive electronic component that offers a resistance of 220 ohms (Ω) to electrical current. It follows Ohm’s Law, which states that voltage (V) across a resistor is equal to the product of current (I) flowing through it and resistance (R):



For instance, if a 5V supply is connected across a 220 Ohm resistor, the current flowing through it would be:

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