Which color in the resistor color code signifies the value of 4?

In the resistor color code, each color corresponds to a specific numerical value used to identify the resistance of the resistor. The color yellow specifically represents the number 4. This system of color coding allows for easy identification and readability of resistor values, facilitating quick calculations and adjustments in electronic circuits.

The other colors mentioned in the options represent different numerical values within the color code: for instance, green signifies 5, cyan is used for 6, and magenta does not correspond to a standard value in the resistor color code, making yellow the correct choice for the value of 4. Understanding this coding system is essential for anyone working with electrical components and circuits, ensuring that the right resistors are selected for particular applications.