In a four-band resistor color code, how many significant digits are provided by the first two bands?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Get ready for the NCCER Introduction to Electrical Circuits exam. Study with multiple choice questions, each question comes with hints and explanations. Ace your exam with confidence!

Multiple Choice

In a four-band resistor color code, how many significant digits are provided by the first two bands?

Explanation:
Two significant digits are provided by the first two bands. In a four-band resistor, those first two bands are the digits of the resistance value, the third band is the multiplier (how many zeros to add), and the fourth band is the tolerance. So the first two bands directly supply the two digits that form the significant part of the resistance, before the multiplier is applied. For example, if the first two bands read as 1 and 0, the significant digits are 10, and the multiplier band would determine the overall value from there.

Two significant digits are provided by the first two bands. In a four-band resistor, those first two bands are the digits of the resistance value, the third band is the multiplier (how many zeros to add), and the fourth band is the tolerance. So the first two bands directly supply the two digits that form the significant part of the resistance, before the multiplier is applied. For example, if the first two bands read as 1 and 0, the significant digits are 10, and the multiplier band would determine the overall value from there.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy