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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 474 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-yellow (c) yellow-grey-orange (d) grey-yellow-orange
  2. 2.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  5. 5.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-black (b) white-red-red (c) red-white-brown (d) white-red-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) white-blue-black (b) grey-blue-brown (c) grey-blue-black (d) blue-grey-black
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-white-black (b) white-grey-black (c) grey-grey-black (d) grey-grey-brown
  11. 11.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 In the resistor colour code, which number does blue stand for?
  14. 14.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-brown (b) orange-green-black (c) orange-green-red (d) green-orange-brown
  24. 24.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-orange (b) green-white-yellow (c) white-green-orange (d) green-white-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) violet-red-brown (c) red-violet-black (d) red-violet-brown
  31. 31.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) red-violet-black (b) brown-violet-black (c) brown-violet-brown (d) violet-brown-black
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 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
  37. 37.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) red-green-brown (b) orange-green-black (c) green-red-black (d) red-green-black
  39. 39.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. grey-yellow-orange
  2. 77000
  3. 59000
  4. 5 %
  5. 310
  6. 0
  7. white-red-brown
  8. grey-blue-black
  9. 9
  10. grey-grey-black
  11. 14
  12. 1
  13. 6
  14. 26000
  15. 62
  16. 800
  17. 51
  18. 80000
  19. 8600
  20. 78
  21. 81
  22. 15000
  23. orange-green-brown
  24. 710
  25. 7
  26. 960
  27. 790
  28. 660
  29. green-white-orange
  30. red-violet-brown
  31. 900
  32. 7.6
  33. 48
  34. brown-violet-black
  35. 3
  36. the one nearest an end
  37. 380
  38. red-green-black
  39. 230
  40. 86

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