Which color represents the digit 7?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which color represents the digit 7?

Explanation:
In the resistor color code, each digit from 0 to 9 is matched with a specific color in this order: black, brown, red, orange, yellow, green, blue, violet, gray, white. The seventh digit corresponds to violet, so the color that represents the digit 7 is violet. This coding is what allows resistors to encode resistance values at a glance. For reference, blue corresponds to 6, green to 5, and yellow to 4, which is why those colors don’t indicate seven.

In the resistor color code, each digit from 0 to 9 is matched with a specific color in this order: black, brown, red, orange, yellow, green, blue, violet, gray, white. The seventh digit corresponds to violet, so the color that represents the digit 7 is violet. This coding is what allows resistors to encode resistance values at a glance. For reference, blue corresponds to 6, green to 5, and yellow to 4, which is why those colors don’t indicate seven.

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