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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 412 · 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 yellow, orange, black. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  3. 3.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) grey-blue-black (b) blue-grey-black (c) blue-grey-brown (d) violet-grey-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-orange (b) orange-green-orange (c) green-orange-yellow (d) green-orange-red
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  7. 7.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) grey-orange-black (b) orange-grey-black (c) yellow-grey-black (d) orange-grey-brown
  9. 9.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) violet-green-black (c) violet-green-brown (d) green-violet-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-yellow (b) white-black-orange (c) brown-white-orange (d) white-black-red
  13. 13.🌈 In the resistor colour code, which number does blue stand for?
  14. 14.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) red-yellow-orange (b) yellow-red-orange (c) yellow-red-red (d) yellow-red-yellow
  19. 19.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) white-yellow-brown (b) white-yellow-black (c) brown-yellow-black (d) yellow-white-black
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 In the resistor colour code, which number does violet stand for?
  28. 28.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) orange-white-brown (b) white-orange-red (c) white-orange-black (d) white-orange-brown
  30. 30.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-black (b) green-blue-black (c) violet-green-black (d) blue-green-brown
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) orange-yellow-red (b) yellow-orange-red (c) yellow-orange-brown (d) yellow-orange-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) brown-orange-brown (b) orange-brown-red (c) orange-brown-brown (d) orange-brown-black
  38. 38.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?

Answer key

  1. 43
  2. the one nearest an end
  3. 5200
  4. blue-grey-black
  5. green-orange-orange
  6. 5 %
  7. 22
  8. orange-grey-black
  9. 65
  10. 2.4
  11. violet-green-black
  12. white-black-orange
  13. 6
  14. 3500
  15. 190
  16. 87
  17. 71000
  18. yellow-red-orange
  19. 400
  20. 31
  21. 5
  22. 96000
  23. white-yellow-black
  24. 4
  25. 14000
  26. 3
  27. 7
  28. 9.1
  29. white-orange-brown
  30. 160
  31. 470
  32. 12000
  33. 14
  34. blue-green-black
  35. 2
  36. yellow-orange-red
  37. orange-brown-brown
  38. 34
  39. 90
  40. 99000

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