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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 129 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-orange (b) brown-white-red (c) white-brown-orange (d) brown-white-yellow
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  5. 5.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-red (b) orange-yellow-orange (c) yellow-orange-red (d) orange-yellow-brown
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-red-orange (b) brown-brown-red (c) brown-brown-yellow (d) brown-brown-orange
  15. 15.🌈 In the resistor colour code, which number does brown stand for?
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does orange stand for?
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) red-orange-brown (b) red-orange-red (c) red-orange-black (d) orange-red-brown
  24. 24.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) red-brown-brown (b) brown-black-red (c) brown-black-black (d) brown-black-brown
  28. 28.🌈 In the resistor colour code, which number does violet stand for?
  29. 29.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-red (b) violet-yellow-brown (c) yellow-violet-black (d) yellow-violet-brown
  31. 31.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-brown (b) orange-yellow-brown (c) orange-orange-red (d) orange-orange-black
  38. 38.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. brown-white-orange
  2. 6
  3. 24000
  4. the one nearest an end
  5. 7300
  6. 8
  7. 5 %
  8. orange-yellow-red
  9. 4
  10. 5.8
  11. 50
  12. 0
  13. 2.1
  14. brown-brown-orange
  15. 1
  16. 9
  17. 76000
  18. 3800
  19. 61000
  20. 35
  21. 3
  22. 2
  23. red-orange-brown
  24. 17
  25. 4800
  26. 76
  27. brown-black-brown
  28. 7
  29. 47000
  30. yellow-violet-brown
  31. 58000
  32. 95
  33. 75
  34. 420
  35. 99
  36. 85
  37. orange-orange-brown
  38. 99
  39. 50000
  40. 5

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