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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 548 · 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, red, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-black (c) yellow-grey-black (d) green-grey-black
  4. 4.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does orange stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-brown (b) brown-blue-red (c) brown-blue-black (d) blue-brown-brown
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-brown (b) green-brown-black (c) brown-green-black (d) blue-brown-black
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  14. 14.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) orange-brown-orange (c) brown-orange-red (d) brown-orange-orange
  17. 17.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-yellow (c) green-red-red (d) green-red-orange
  20. 20.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) violet-grey-brown (b) violet-grey-orange (c) grey-violet-red (d) violet-grey-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) orange-blue-black (b) violet-orange-black (c) blue-orange-brown (d) blue-orange-black
  24. 24.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) grey-black-orange (b) grey-black-brown (c) grey-black-red (d) white-grey-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-red (b) brown-red-orange (c) red-brown-red (d) brown-red-brown
  30. 30.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does grey stand for?
  32. 32.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-brown (b) violet-orange-black (c) orange-violet-black (d) yellow-violet-black
  34. 34.🌈 In the resistor colour code, which number does blue stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-brown (c) blue-yellow-red (d) blue-yellow-black
  36. 36.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-brown (b) green-white-black (c) green-white-red (d) white-green-brown
  38. 38.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 42
  2. 87
  3. yellow-grey-black
  4. 3.7
  5. 3
  6. brown-blue-brown
  7. 5 %
  8. 4
  9. green-brown-black
  10. 2
  11. 550
  12. 290
  13. the one nearest an end
  14. 4900
  15. 7
  16. brown-orange-orange
  17. 5400
  18. 0
  19. green-red-orange
  20. 53
  21. 1
  22. violet-grey-red
  23. blue-orange-black
  24. 25
  25. 54
  26. 6.9
  27. 3200
  28. grey-black-red
  29. brown-red-red
  30. 44
  31. 8
  32. 77
  33. orange-violet-black
  34. 6
  35. blue-yellow-brown
  36. 30000
  37. green-white-brown
  38. 610
  39. 76000
  40. 3

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