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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 200 · 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 orange, blue, black. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  3. 3.🌈 In the resistor colour code, which number does blue stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  5. 5.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) orange-red-brown (c) red-black-red (d) red-black-brown
  8. 8.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) white-orange-brown (b) white-orange-red (c) white-orange-black (d) orange-white-brown
  14. 14.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) violet-brown-brown (c) brown-violet-brown (d) brown-violet-black
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) white-grey-black (b) grey-grey-brown (c) grey-grey-black (d) grey-white-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) blue-orange-orange (c) orange-blue-orange (d) orange-blue-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) violet-blue-orange (b) blue-black-red (c) blue-black-orange (d) blue-black-yellow
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) blue-red-black (b) red-green-black (c) green-red-brown (d) green-red-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) brown-violet-orange (b) violet-brown-orange (c) violet-brown-yellow (d) violet-brown-red
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-black (b) white-grey-brown (c) grey-white-brown (d) white-grey-red
  25. 25.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-red (b) blue-brown-orange (c) brown-blue-orange (d) brown-blue-yellow
  33. 33.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-brown (b) orange-black-black (c) red-black-black (d) orange-red-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-red (c) yellow-blue-brown (d) yellow-blue-black
  37. 37.🌈 In the resistor colour code, which number does black stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-brown (b) grey-violet-brown (c) violet-black-black (d) violet-black-red
  39. 39.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?

Answer key

  1. 36
  2. the one nearest an end
  3. 6
  4. 5 %
  5. 66
  6. 7
  7. red-black-brown
  8. 84000
  9. 5
  10. 49
  11. 76
  12. 510
  13. white-orange-brown
  14. 8900
  15. brown-violet-brown
  16. 4
  17. 1500
  18. 2
  19. grey-grey-black
  20. orange-blue-orange
  21. blue-black-orange
  22. green-red-black
  23. violet-brown-orange
  24. white-grey-brown
  25. 98
  26. 99
  27. 34
  28. 350
  29. 2
  30. 15
  31. 540
  32. brown-blue-orange
  33. 59
  34. 1
  35. red-black-black
  36. yellow-blue-brown
  37. 0
  38. violet-black-brown
  39. 73
  40. 36000

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