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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 483 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-black-black (b) blue-black-brown (c) blue-black-black (d) violet-blue-black
  2. 2.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-yellow (b) red-violet-orange (c) violet-red-orange (d) red-violet-red
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) blue-grey-black (b) green-grey-brown (c) green-grey-black (d) grey-green-black
  6. 6.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) violet-yellow-black (b) green-violet-black (c) yellow-violet-black (d) yellow-violet-brown
  9. 9.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-red (b) orange-violet-yellow (c) orange-violet-orange (d) violet-orange-orange
  12. 12.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-black (b) brown-green-brown (c) green-brown-red (d) green-brown-brown
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-orange (b) violet-red-red (c) red-violet-orange (d) violet-red-yellow
  17. 17.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 890 Ω resistor? (a) white-grey-brown (b) grey-white-black (c) grey-white-red (d) grey-white-brown
  19. 19.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-red (b) red-red-brown (c) red-orange-brown (d) red-red-black
  21. 21.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-orange (b) grey-brown-red (c) brown-grey-brown (d) brown-grey-red
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  28. 28.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  29. 29.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) white-green-black (b) white-green-red (c) green-white-brown (d) white-green-brown
  38. 38.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) violet-green-black (b) green-blue-black (c) blue-green-brown (d) blue-green-black

Answer key

  1. blue-black-black
  2. 9.2
  3. red-violet-orange
  4. 7
  5. green-grey-black
  6. 63
  7. 88
  8. yellow-violet-black
  9. 3600
  10. 14
  11. orange-violet-orange
  12. 94
  13. 31
  14. 5 %
  15. green-brown-brown
  16. violet-red-orange
  17. 370
  18. grey-white-brown
  19. 2.5
  20. red-red-brown
  21. 410
  22. brown-grey-red
  23. 5
  24. 14
  25. 51
  26. 2
  27. 22000
  28. the one nearest an end
  29. 860
  30. 6
  31. 4
  32. 450
  33. 1
  34. 130
  35. 80000
  36. 40
  37. white-green-brown
  38. 66
  39. 760
  40. blue-green-black

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