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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 55 · 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 orange stand for?
  2. 2.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  6. 6.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-blue-black (b) violet-black-black (c) blue-black-black (d) blue-black-brown
  8. 8.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) violet-white-red (b) white-violet-red (c) white-violet-brown (d) white-violet-orange
  11. 11.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-black (b) grey-brown-brown (c) white-brown-black (d) brown-grey-black
  18. 18.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-red (b) violet-grey-orange (c) violet-violet-yellow (d) violet-violet-orange
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-black (b) yellow-white-brown (c) yellow-white-red (d) white-yellow-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) white-blue-brown (c) blue-white-red (d) white-blue-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) blue-brown-black (b) brown-green-black (c) green-brown-brown (d) green-brown-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-orange (b) red-brown-orange (c) brown-red-yellow (d) brown-red-red
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) violet-violet-black (c) violet-blue-black (d) blue-violet-black
  26. 26.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does red stand for?
  30. 30.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) green-white-orange (b) white-green-orange (c) white-green-yellow (d) white-green-red
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-red (b) blue-green-brown (c) green-blue-black (d) green-blue-brown
  34. 34.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?

Answer key

  1. 3
  2. 34
  3. 7
  4. 420
  5. 5 %
  6. 24
  7. blue-black-black
  8. 380
  9. 140
  10. white-violet-red
  11. the one nearest an end
  12. 9
  13. 59
  14. 610
  15. 97000
  16. 43
  17. grey-brown-black
  18. 320
  19. violet-violet-orange
  20. yellow-white-brown
  21. white-blue-red
  22. green-brown-black
  23. brown-red-orange
  24. 1
  25. blue-violet-black
  26. 65
  27. 700
  28. 14
  29. 2
  30. 92000
  31. 0
  32. white-green-orange
  33. green-blue-brown
  34. 2.5
  35. 50
  36. 190
  37. 310
  38. 6000
  39. 760
  40. 52000

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