The mnemonic phrase is used to remember resistor color codes. Which component uses color codes that this mnemonic helps remember?

• A. Resistors
• B. Capacitors
• C. Diodes
• D. Inductors

Answer: (A)

The mnemonic is used to remember the color-to-number order for resistor markings, and resistors are the components that use color bands to indicate their resistance value, tolerance, and sometimes temperature coefficient. The first two bands give digits, the third is the multiplier, and the fourth shows tolerance, so the mnemonic helps you translate those bands into an actual resistance in ohms. Capacitors, diodes, and inductors don’t follow this standardized color-band scheme for marking their values, so they aren’t the subject of this mnemonic. Thus, the component that uses color codes remembered by this mnemonic is the resistor.