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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 614 · 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.

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  1. 1.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) blue-violet-brown (b) violet-blue-red (c) violet-blue-black (d) violet-blue-brown
  2. 2.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-brown (b) orange-grey-red (c) grey-orange-orange (d) grey-orange-red
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-black (c) brown-brown-brown (d) brown-red-black
  7. 7.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) orange-red-brown (c) red-black-red (d) red-black-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-red (b) blue-yellow-yellow (c) yellow-blue-orange (d) blue-yellow-orange
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) yellow-orange-orange (b) orange-black-yellow (c) orange-black-red (d) orange-black-orange
  11. 11.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) blue-yellow-orange (b) yellow-blue-yellow (c) yellow-blue-orange (d) yellow-blue-red
  21. 21.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-brown (c) red-yellow-red (d) red-yellow-black
  24. 24.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) grey-yellow-black (b) yellow-grey-black (c) grey-yellow-brown (d) white-yellow-black
  26. 26.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does violet stand for?
  32. 32.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does orange stand for?
  34. 34.🌈 In the resistor colour code, which number does blue stand for?
  35. 35.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) red-blue-black (b) violet-red-black (c) blue-red-brown (d) blue-red-black
  37. 37.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?

Answer key

  1. violet-blue-brown
  2. 870
  3. grey-orange-red
  4. 5 %
  5. 2
  6. brown-brown-black
  7. the one nearest an end
  8. red-black-brown
  9. blue-yellow-orange
  10. orange-black-orange
  11. 87
  12. 8
  13. 35000
  14. 180
  15. 990
  16. 660
  17. 290
  18. 0
  19. 520
  20. yellow-blue-orange
  21. 56000
  22. 6000
  23. red-yellow-brown
  24. 780
  25. grey-yellow-black
  26. 230
  27. 76
  28. 1
  29. 7800
  30. 31
  31. 7
  32. 4.3
  33. 3
  34. 6
  35. 3200
  36. blue-red-black
  37. 31
  38. 640
  39. 88
  40. 890

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