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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 210 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-red (b) violet-orange-brown (c) orange-violet-brown (d) violet-orange-black
  7. 7.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  8. 8.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-brown (b) blue-violet-red (c) violet-blue-red (d) blue-violet-orange
  11. 11.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-orange (b) orange-yellow-red (c) orange-orange-red (d) orange-orange-brown
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-red (b) white-red-brown (c) white-red-black (d) red-white-brown
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does violet stand for?
  21. 21.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 In the resistor colour code, which number does yellow stand for?
  26. 26.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-orange (c) violet-orange-red (d) violet-orange-brown
  28. 28.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-black (c) yellow-violet-brown (d) yellow-violet-red
  31. 31.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) violet-black-brown (c) grey-black-black (d) grey-violet-black
  34. 34.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) green-blue-red (b) blue-green-red (c) blue-green-brown (d) blue-green-orange
  37. 37.🌈 In the resistor colour code, which number does black stand for?
  38. 38.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) yellow-brown-black (c) orange-brown-black (d) orange-brown-brown
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. 12000
  2. 2
  3. 87
  4. 8
  5. 6700
  6. violet-orange-brown
  7. the one nearest an end
  8. 600
  9. 43000
  10. blue-violet-red
  11. 470
  12. orange-orange-red
  13. 5 %
  14. 5
  15. 2.6
  16. 62
  17. white-red-brown
  18. 3
  19. 41
  20. 7
  21. 930
  22. 81000
  23. 3600
  24. 9
  25. 4
  26. 38
  27. violet-orange-red
  28. 750
  29. 6100
  30. yellow-violet-brown
  31. 100
  32. 2.4
  33. violet-black-black
  34. 510
  35. 62000
  36. blue-green-red
  37. 0
  38. 54000
  39. orange-brown-black
  40. 6

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