Which color bands indicate a 5.6 kΩ resistor with ±5% tolerance?

• A. Yellow-Violet-Black-Silver.
• B. Blue-Green-Black-Gold.
• C. Green-Blue-Red-Gold.
• D. Green-Blue-Gold-Gold.

Answer: (D)

The value on a resistor is read from color bands using two digit bands, a multiplier, and a tolerance. For a 5.6 kΩ resistor, you can think of it as 56 multiplied by 100 (since 5.6 kΩ equals 5600 Ω). The digits 5 and 6 correspond to the colors green and blue. The multiplier 100 corresponds to the color red (10^2). The tolerance of ±5% is shown by gold. So the correct color sequence is green, blue, red, gold, which yields 56 × 100 = 5600 Ω with ±5% tolerance. The other sequences would give different values, such as a gold multiplier giving 5.6 Ω with ±5% tolerance.