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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 257 · 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 890 Ω resistor? (a) grey-white-red (b) grey-white-brown (c) white-grey-brown (d) grey-white-black
  2. 2.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-black (b) grey-red-red (c) grey-red-brown (d) red-grey-brown
  5. 5.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-yellow (b) red-brown-orange (c) brown-black-red (d) brown-black-orange
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-orange-black (b) orange-black-black (c) orange-black-brown (d) yellow-black-black
  8. 8.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  9. 9.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  10. 10.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) orange-brown-black (b) brown-orange-brown (c) brown-orange-black (d) red-orange-black
  15. 15.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-red-black (d) brown-red-black
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) green-grey-black (c) blue-grey-black (d) grey-green-black
  20. 20.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  21. 21.🌈 In the resistor colour code, which number does orange stand for?
  22. 22.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) yellow-blue-red (b) blue-yellow-red (c) blue-yellow-brown (d) blue-yellow-orange
  26. 26.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-orange (b) red-blue-orange (c) blue-red-yellow (d) blue-red-red
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) white-green-brown (b) white-green-black (c) green-white-brown (d) white-green-red
  30. 30.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) yellow-orange-brown (b) yellow-orange-black (c) orange-yellow-brown (d) yellow-orange-red
  38. 38.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) white-green-brown (b) green-white-red (c) green-white-black (d) green-white-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) blue-brown-orange (b) brown-blue-red (c) brown-blue-yellow (d) brown-blue-orange

Answer key

  1. grey-white-brown
  2. 430
  3. 9.3
  4. grey-red-brown
  5. 86000
  6. brown-black-orange
  7. orange-black-black
  8. 7200
  9. the one nearest an end
  10. 7.3
  11. 34000
  12. 4.5
  13. 5
  14. brown-orange-black
  15. 51
  16. 9800
  17. brown-red-black
  18. 1
  19. green-grey-black
  20. 5 %
  21. 3
  22. 45
  23. 69000
  24. 4.2
  25. blue-yellow-red
  26. 49
  27. blue-red-orange
  28. 2
  29. white-green-brown
  30. 3.7
  31. 300
  32. 87000
  33. 680
  34. 410
  35. 18
  36. 390
  37. yellow-orange-brown
  38. 57000
  39. green-white-brown
  40. brown-blue-orange

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