Resistor color code – digit value for BLUE In the standard 10-color resistor code (black to white), what base digit does the color BLUE represent when reading resistor values?

Introduction / Context:The resistor color code encodes numerical values and tolerances with colored bands. Remembering each color’s digit helps you read resistors quickly without a calculator or chart.

Given Data / Assumptions:

• The standard sequence is: black, brown, red, orange, yellow, green, blue, violet, grey, white.
• Digits map from 0 through 9 in that order.
• We are asked specifically for the digit corresponding to BLUE.

Concept / Approach:Using a common mnemonic (for example, “BB ROY Great Britain Very Good Wife” or similar), blue is the seventh color in the 0–9 sequence starting at black=0. Counting: black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue 6, violet 7, grey 8, white 9.

Step-by-Step Solution:List the ordered colors with digits.Locate BLUE in the sequence → 6.Choose “6.”

Verification / Alternative check:Any electronics handbook or resistor calculator confirms blue corresponds to 6 for significant figures and, in multiplier position, to 10^6.

Why Other Options Are Wrong:

• 1 (brown), 2 (red), 4 (yellow): digits belonging to other colors; not blue.

Common Pitfalls:Confusing digit values with tolerance colors (gold, silver) or reading bands in the wrong direction. Always start from the side with the tolerance band farthest from the edge.

Final Answer:6