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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 265 · 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 white, brown, black. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does violet stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-brown (b) brown-white-red (c) white-black-orange (d) white-black-red
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-black (b) green-violet-red (c) violet-green-brown (d) green-violet-brown
  5. 5.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  8. 8.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  9. 9.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) blue-green-black (b) blue-blue-black (c) green-blue-black (d) green-blue-brown
  12. 12.🌈 In the resistor colour code, which number does green stand for?
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-orange (b) grey-brown-brown (c) brown-grey-red (d) grey-brown-red
  16. 16.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-brown (b) blue-black-black (c) violet-blue-brown (d) blue-black-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) yellow-white-black (c) orange-white-black (d) white-orange-black
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-brown (b) brown-brown-orange (c) brown-brown-red (d) brown-red-red
  23. 23.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-black (b) yellow-grey-brown (c) yellow-grey-red (d) grey-yellow-brown
  31. 31.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) violet-orange-orange (b) violet-orange-brown (c) violet-orange-red (d) orange-violet-red
  38. 38.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. 91
  2. 7
  3. white-black-red
  4. green-violet-brown
  5. 900
  6. 2
  7. 5 %
  8. the one nearest an end
  9. 82
  10. 33000
  11. green-blue-black
  12. 5
  13. 3
  14. 70
  15. grey-brown-red
  16. 3
  17. 80
  18. 29
  19. 270
  20. blue-black-brown
  21. orange-white-black
  22. brown-brown-red
  23. 41
  24. 21000
  25. 9800
  26. 2.3
  27. 820
  28. 500
  29. 1100
  30. yellow-grey-brown
  31. 4.4
  32. 830
  33. 390
  34. 83000
  35. 52
  36. 2000
  37. violet-orange-red
  38. 56
  39. 870
  40. 9

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