How does light intensity affect the resistance in a cad cell?

In a cad cell, which is a type of light-sensing device used in oil burners, the relationship between light intensity and resistance is inversely proportional. This means that as light intensity increases, the resistance of the cad cell decreases, and conversely, as light intensity decreases, the resistance increases.

Therefore, when the environment receives more light, the cad cell's resistance lowers, allowing more electrical current to flow through. Conversely, in low light conditions, the resistance of the cad cell increases, reducing the flow of electricity.

Since both statements accurately describe the behavior of the cad cell in relation to varying light intensities, the conclusion that both statements are correct captures the essential principle of how cad cells function in oil burner systems. Understanding this relationship is important for troubleshooting and maintaining proper operation of oil burners.