To find the value of an inductor using the color code method, observe the colored bands printed on the inductor. The first two bands represent the significant digits of the inductance value, the third band indicates the multiplier (power of ten), and the fourth band (if present) specifies the tolerance. For example, if the colors are Red (2), Black (0), and Orange (×1000) with Silver (±10%), the inductance value is calculated as:
𝐿=(20)×10^3=20,000 𝜇𝐻=20 𝑚𝐻
L=(20)×10^3 =20,000μH=20mH.
Tolerance means the actual value can vary by ±10%. This method is similar to decoding resistor values, making it a quick and reliable way to identify inductance without needing advanced measurement t