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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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There are different types of engine cams, the most common being the camshaft, which can be either overhead (OHC) or in-block. Overhead camshafts—found in many modern vehicles—are designed to reduce engine height while improving efficiency. Each engine cam type exhibits its own unique characteristics, allowing manufacturers to optimize performance for specific applications, from daily driving to high-performance racing.


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