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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 239 · 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.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-black-black (c) red-brown-black (d) brown-black-black
  3. 3.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) brown-yellow-orange (b) yellow-brown-red (c) yellow-brown-orange (d) yellow-brown-yellow
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) yellow-blue-orange (b) blue-yellow-yellow (c) blue-yellow-red (d) blue-yellow-orange
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-orange (b) orange-orange-brown (c) orange-yellow-red (d) orange-orange-red
  14. 14.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  15. 15.🌈 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
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-brown (b) orange-white-red (c) white-orange-red (d) orange-white-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-orange (b) white-white-red (c) white-black-orange (d) white-white-yellow
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-brown (b) red-orange-brown (c) orange-red-black (d) orange-red-red
  19. 19.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-black (b) brown-black-red (c) brown-black-brown (d) red-brown-brown
  21. 21.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 In the resistor colour code, which number does grey stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) grey-brown-black (b) violet-brown-brown (c) brown-violet-black (d) violet-brown-black
  34. 34.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, red, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 84
  2. brown-black-black
  3. 22
  4. 6400
  5. 5 %
  6. yellow-brown-orange
  7. 9
  8. 79000
  9. 5
  10. blue-yellow-orange
  11. 4
  12. 39
  13. orange-orange-red
  14. 15000
  15. the one nearest an end
  16. orange-white-red
  17. white-white-orange
  18. orange-red-brown
  19. 25000
  20. brown-black-brown
  21. 490
  22. 9.7
  23. 83
  24. 3
  25. 49000
  26. 1
  27. 72000
  28. 1
  29. 37
  30. 4700
  31. 0
  32. 8
  33. violet-brown-black
  34. 65000
  35. 7
  36. 3000
  37. 9200
  38. 48000
  39. 43
  40. 12

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