Final answer:
The 4th band on a resistor represents tolerance. Resistance value and tolerance of a resistor are indicated by the color bands on resistors.
Explanation:
The color band that represents tolerance on a resistor is the 4th band. In the color code for resistors, the fourth band indicates the tolerance level, which is crucial for determining the range within which the resistor's actual value can vary. For example, a gold band signifies a tolerance of ±5%, while a silver band indicates a tolerance of ±10%.
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