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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 524 · 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.🌈 In the resistor colour code, which number does grey stand for?
  2. 2.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) white-yellow-red (b) white-yellow-black (c) white-yellow-brown (d) yellow-white-brown
  5. 5.🌈 In the resistor colour code, which number does yellow stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  7. 7.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-orange (b) brown-red-orange (c) brown-brown-red (d) brown-brown-yellow
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-brown (b) green-brown-black (c) blue-brown-black (d) brown-green-black
  10. 10.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-orange (b) white-grey-brown (c) grey-white-red (d) white-grey-red
  12. 12.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) white-grey-black (b) grey-grey-brown (c) grey-white-black (d) grey-grey-black
  17. 17.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-black (b) green-grey-brown (c) green-grey-red (d) grey-green-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-orange (b) yellow-red-red (c) red-yellow-red (d) yellow-red-brown
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) white-orange-orange (b) orange-white-yellow (c) orange-white-orange (d) orange-white-red
  25. 25.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-red (b) green-orange-orange (c) green-orange-yellow (d) orange-green-orange
  28. 28.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does red stand for?
  30. 30.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does orange stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-orange (b) red-brown-red (c) brown-red-orange (d) red-brown-yellow
  34. 34.🌈 In the resistor colour code, which number does blue stand for?
  35. 35.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-brown (c) brown-blue-red (d) brown-blue-black
  39. 39.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-orange (b) violet-red-red (c) red-violet-brown (d) red-violet-red

Answer key

  1. 8
  2. 2600
  3. 5 %
  4. white-yellow-brown
  5. 4
  6. the one nearest an end
  7. 85000
  8. brown-brown-orange
  9. green-brown-black
  10. 12
  11. white-grey-red
  12. 87000
  13. 1400
  14. 66
  15. 760
  16. grey-grey-black
  17. 300
  18. 11
  19. green-grey-brown
  20. yellow-red-red
  21. 7
  22. 61
  23. 530
  24. orange-white-orange
  25. 52000
  26. 1.1
  27. green-orange-orange
  28. 44
  29. 2
  30. 930
  31. 36
  32. 3
  33. red-brown-orange
  34. 6
  35. 97
  36. 5
  37. 850
  38. brown-blue-brown
  39. 94
  40. red-violet-red

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