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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 628 · 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 band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-yellow (c) brown-black-orange (d) brown-black-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-brown (b) violet-orange-brown (c) orange-violet-black (d) orange-violet-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-red (b) brown-yellow-black (c) brown-yellow-brown (d) yellow-brown-brown
  7. 7.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-green-orange (d) green-blue-red
  13. 13.🌈 In the resistor colour code, which number does white stand for?
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-orange (c) yellow-grey-orange (d) grey-yellow-yellow
  19. 19.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) yellow-orange-brown (b) orange-black-brown (c) orange-black-red (d) orange-black-black
  21. 21.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-red (b) yellow-red-orange (c) red-yellow-orange (d) red-yellow-yellow
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) green-white-black (b) white-green-brown (c) white-green-black (d) brown-green-black
  28. 28.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-orange (b) brown-orange-red (c) orange-brown-red (d) brown-orange-brown
  31. 31.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-brown (b) grey-orange-orange (c) grey-orange-red (d) orange-grey-red
  33. 33.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) green-blue-black (b) yellow-blue-black (c) yellow-blue-brown (d) blue-yellow-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-black (b) red-blue-black (c) blue-red-brown (d) violet-red-black
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 2
  3. 5 %
  4. brown-black-orange
  5. orange-violet-brown
  6. brown-yellow-brown
  7. 1600
  8. 140
  9. 2.5
  10. 77000
  11. 460
  12. green-green-red
  13. 9
  14. 5
  15. 330
  16. 400
  17. 930
  18. grey-yellow-orange
  19. 17
  20. orange-black-brown
  21. 42000
  22. 20
  23. 3
  24. 18
  25. 0
  26. red-yellow-orange
  27. white-green-black
  28. 26
  29. 52000
  30. brown-orange-red
  31. 9.2
  32. grey-orange-red
  33. 12
  34. 3600
  35. 54
  36. 7800
  37. yellow-blue-black
  38. blue-red-black
  39. 6
  40. 720

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