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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 413 · 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 green stand for?
  2. 2.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) red-brown-black (b) brown-black-brown (c) red-black-black (d) brown-black-black
  11. 11.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-brown (b) yellow-red-black (c) yellow-red-red (d) red-yellow-brown
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) green-blue-orange (b) blue-green-red (c) blue-green-orange (d) blue-green-yellow
  17. 17.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  18. 18.🌈 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
  19. 19.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-red (b) red-brown-orange (c) red-brown-yellow (d) brown-red-orange
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) yellow-red-black (b) orange-red-black (c) red-orange-black (d) orange-red-brown
  29. 29.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-orange (b) yellow-red-orange (c) red-yellow-yellow (d) red-yellow-red
  31. 31.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) orange-blue-brown (b) blue-orange-red (c) blue-orange-black (d) blue-orange-brown
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-black (b) brown-white-brown (c) white-brown-red (d) white-brown-brown
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) yellow-green-black (b) orange-green-black (c) green-orange-black (d) orange-green-brown
  37. 37.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?

Answer key

  1. 5
  2. 470
  3. 5 %
  4. 4
  5. 320
  6. 93000
  7. 820
  8. 7
  9. 78
  10. brown-black-black
  11. 9700
  12. 6800
  13. yellow-red-brown
  14. 9
  15. 54000
  16. blue-green-orange
  17. 2200
  18. the one nearest an end
  19. 20000
  20. 610
  21. 25
  22. 0
  23. 9.5
  24. 86
  25. 20
  26. 3
  27. red-brown-orange
  28. orange-red-black
  29. 38
  30. red-yellow-orange
  31. 7600
  32. blue-orange-brown
  33. white-brown-brown
  34. 2
  35. 44000
  36. orange-green-black
  37. 140
  38. 72
  39. 6300
  40. 47000

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