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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 33 · 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) any band (c) the gold band (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) grey-green-brown (c) green-grey-black (d) green-grey-brown
  6. 6.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-red (b) orange-black-brown (c) orange-black-orange (d) yellow-orange-red
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-black (b) yellow-grey-brown (c) grey-yellow-brown (d) yellow-grey-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) grey-green-red (b) green-grey-red (c) grey-green-brown (d) grey-green-orange
  17. 17.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) yellow-orange-red (c) orange-yellow-orange (d) yellow-orange-orange
  20. 20.🌈 In the resistor colour code, which number does orange stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) orange-brown-black (b) orange-brown-brown (c) brown-orange-black (d) yellow-brown-black
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) grey-blue-brown (c) white-blue-black (d) blue-grey-black
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) red-orange-red (c) red-orange-orange (d) orange-red-red
  30. 30.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-orange (b) red-brown-brown (c) brown-red-red (d) red-brown-red
  32. 32.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-orange (b) blue-blue-yellow (c) blue-blue-red (d) blue-violet-orange
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) red-violet-brown (c) red-violet-black (d) violet-red-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) orange-blue-orange (b) blue-orange-yellow (c) blue-orange-orange (d) blue-orange-red
  37. 37.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-orange (b) blue-blue-brown (c) blue-violet-red (d) blue-blue-red
  40. 40.🌈 In the resistor colour code, which number does violet stand for?

Answer key

  1. the one nearest an end
  2. 82
  3. 160
  4. 5 %
  5. green-grey-brown
  6. 3800
  7. 650
  8. 2500
  9. 9
  10. 90
  11. 31
  12. 0
  13. orange-black-red
  14. 8
  15. yellow-grey-brown
  16. grey-green-red
  17. 750
  18. 5
  19. yellow-orange-orange
  20. 3
  21. orange-brown-black
  22. 4
  23. grey-blue-black
  24. 1
  25. 5.2
  26. 44
  27. 84
  28. 31
  29. red-orange-red
  30. 5.1
  31. red-brown-red
  32. 1200
  33. 750
  34. blue-blue-orange
  35. red-violet-brown
  36. blue-orange-orange
  37. 40
  38. 81000
  39. blue-blue-red
  40. 7

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