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Resistors are one of the most fundamental electrical components. They limit the flow of electric current and are measured in ohms. Resistors are critical for controlling voltage and current levels in circuits, ensuring that delicate components do not receive excessive power that could lead to damage. For example, in a simple LED circuit, resistors protect the LED by limiting the amount of current that flows through it, thus extending its lifespan.


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In the realm of electrical installations, particularly in residential and commercial settings, the importance of sub-panels cannot be overstated. Sub-panels serve as secondary distribution points that allow for efficient management of electrical circuits in a building. Whether for a home addition, a workshop in the garage, or a specialized commercial application, understanding sub-panels is crucial for both safety and functionality.


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