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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 706 · 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 an 8800 Ω resistor? (a) grey-grey-brown (b) grey-grey-orange (c) grey-white-red (d) grey-grey-red
  2. 2.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-red (c) green-grey-orange (d) grey-green-orange
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  6. 6.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-green-black (b) yellow-green-black (c) green-yellow-black (d) yellow-green-brown
  9. 9.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) yellow-blue-brown (b) blue-yellow-brown (c) blue-yellow-black (d) blue-yellow-red
  13. 13.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-red (b) yellow-violet-brown (c) violet-yellow-brown (d) yellow-violet-black
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) white-orange-black (c) brown-orange-black (d) orange-white-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) brown-blue-red (b) blue-brown-brown (c) blue-brown-orange (d) blue-brown-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-red (c) red-yellow-brown (d) red-yellow-black
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does white stand for?
  29. 29.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-brown-black (c) red-black-black (d) brown-black-black
  31. 31.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-black (b) blue-yellow-black (c) green-blue-black (d) yellow-blue-brown
  36. 36.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. grey-grey-red
  2. 7.9
  3. 74
  4. green-grey-orange
  5. the one nearest an end
  6. 4
  7. 4400
  8. yellow-green-black
  9. 550
  10. 77
  11. 6.9
  12. blue-yellow-brown
  13. 3400
  14. 28
  15. 1.9
  16. 57
  17. 930
  18. 820
  19. 280
  20. 6800
  21. yellow-violet-brown
  22. 1
  23. white-orange-black
  24. blue-brown-red
  25. red-yellow-brown
  26. 4
  27. 47000
  28. 9
  29. 5 %
  30. brown-black-black
  31. 7.7
  32. 130
  33. 6
  34. 8
  35. yellow-blue-black
  36. 40
  37. 26000
  38. 140
  39. 6600
  40. 81

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