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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 310 · 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 blue stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) yellow-green-black (b) blue-yellow-black (c) green-yellow-black (d) green-yellow-brown
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) yellow-red-black (b) red-orange-black (c) orange-red-black (d) orange-red-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) green-white-orange (b) white-green-yellow (c) white-green-red (d) white-green-orange
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) yellow-violet-black (b) orange-violet-black (c) violet-orange-black (d) orange-violet-brown
  8. 8.🌈 In the resistor colour code, which number does white stand for?
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-orange (b) green-white-red (c) green-white-brown (d) white-green-red
  11. 11.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  15. 15.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  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 57000 Ω resistor? (a) green-violet-yellow (b) green-violet-red (c) green-violet-orange (d) violet-green-orange
  22. 22.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-yellow (b) violet-white-orange (c) white-violet-red (d) white-violet-orange
  27. 27.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-brown (b) orange-green-black (c) green-orange-black (d) yellow-green-black
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-red (b) blue-yellow-orange (c) yellow-blue-orange (d) blue-yellow-yellow
  31. 31.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) violet-brown-black (b) brown-violet-brown (c) red-violet-black (d) brown-violet-black
  33. 33.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) white-green-brown (b) white-green-black (c) green-white-black (d) brown-green-black
  35. 35.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?

Answer key

  1. 6
  2. green-yellow-black
  3. 5 %
  4. 5
  5. orange-red-black
  6. white-green-orange
  7. orange-violet-black
  8. 9
  9. 0
  10. green-white-red
  11. 17000
  12. 85000
  13. 1
  14. the one nearest an end
  15. 5.3
  16. 2.5
  17. 310
  18. 5000
  19. 570
  20. 3
  21. green-violet-orange
  22. 30
  23. 290
  24. 8
  25. 2800
  26. white-violet-orange
  27. 520
  28. 91000
  29. orange-green-black
  30. blue-yellow-orange
  31. 8
  32. brown-violet-black
  33. 260
  34. white-green-black
  35. 75
  36. 170
  37. 95
  38. 6.2
  39. 23000
  40. 82000

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