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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 817 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-black (b) brown-white-red (c) white-brown-brown (d) brown-white-brown
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) violet-blue-brown (b) blue-violet-red (c) blue-violet-brown (d) blue-violet-black
  6. 6.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does green stand for?
  12. 12.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) blue-grey-black (b) green-grey-brown (c) green-grey-black (d) grey-green-black
  14. 14.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-black (c) green-violet-black (d) yellow-violet-black
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) yellow-white-orange (b) white-yellow-orange (c) white-yellow-yellow (d) white-yellow-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-red (b) orange-orange-yellow (c) orange-orange-orange (d) orange-yellow-orange
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) red-red-black (c) orange-red-black (d) red-orange-black
  30. 30.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) orange-yellow-orange (c) yellow-orange-red (d) yellow-orange-orange
  33. 33.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) white-violet-black (c) white-violet-brown (d) brown-violet-black

Answer key

  1. 5 %
  2. brown-white-brown
  3. 7
  4. the one nearest an end
  5. blue-violet-brown
  6. 320
  7. 500
  8. 2
  9. 4
  10. 79
  11. 5
  12. 94
  13. green-grey-black
  14. 10000
  15. 9300
  16. 650
  17. 1
  18. 500
  19. 40
  20. 2.6
  21. 71
  22. yellow-violet-black
  23. 9
  24. 600
  25. 84000
  26. 790
  27. white-yellow-orange
  28. orange-orange-orange
  29. red-red-black
  30. 19
  31. 390
  32. yellow-orange-orange
  33. 47
  34. 50
  35. 17
  36. 380
  37. 670
  38. 27000
  39. 90000
  40. white-violet-black

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