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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 275 · 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 green, red, orange. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) grey-white-red (b) white-grey-brown (c) white-grey-red (d) white-grey-orange
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 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
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does grey stand for?
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-black (c) green-brown-black (d) yellow-brown-black
  15. 15.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) brown-orange-red (b) orange-brown-orange (c) orange-brown-red (d) orange-brown-brown
  19. 19.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) brown-white-black (b) white-brown-brown (c) brown-brown-black (d) white-brown-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-orange (b) grey-violet-orange (c) violet-grey-yellow (d) violet-grey-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54000 Ω resistor? (a) green-yellow-orange (b) green-yellow-yellow (c) green-yellow-red (d) yellow-green-orange
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) red-orange-yellow (b) red-orange-red (c) red-orange-orange (d) orange-red-orange
  29. 29.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) orange-red-brown (b) orange-red-black (c) red-orange-black (d) yellow-red-black
  36. 36.🌈 In the resistor colour code, which number does black stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) blue-orange-red (b) blue-orange-brown (c) blue-orange-black (d) orange-blue-brown
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 52000
  2. white-grey-red
  3. 5 %
  4. 3
  5. 99
  6. 780
  7. the one nearest an end
  8. 5
  9. 4600
  10. 6.5
  11. 8
  12. 4
  13. 9.6
  14. yellow-brown-black
  15. 45
  16. 4.5
  17. 7
  18. orange-brown-red
  19. 70
  20. 98
  21. 9.2
  22. 89000
  23. 720
  24. 4.1
  25. white-brown-black
  26. violet-grey-orange
  27. green-yellow-orange
  28. red-orange-orange
  29. 41
  30. 8900
  31. 9
  32. 2
  33. 190
  34. 68
  35. orange-red-black
  36. 0
  37. blue-orange-brown
  38. 1
  39. 1
  40. 3

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