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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 217 · 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 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-orange (c) brown-blue-brown (d) brown-blue-red
  2. 2.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) violet-grey-red (b) violet-grey-brown (c) violet-grey-orange (d) grey-violet-red
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-green-red (b) yellow-yellow-brown (c) yellow-yellow-orange (d) yellow-yellow-red
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-brown (b) orange-blue-orange (c) orange-blue-red (d) blue-orange-red
  11. 11.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) yellow-blue-orange (b) blue-yellow-orange (c) blue-yellow-red (d) blue-yellow-yellow
  15. 15.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-violet-black (b) grey-violet-black (c) violet-violet-brown (d) violet-grey-black
  19. 19.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does orange stand for?
  29. 29.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-orange (c) brown-black-yellow (d) brown-black-red
  38. 38.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?

Answer key

  1. brown-blue-red
  2. 24
  3. violet-grey-red
  4. 5 %
  5. yellow-yellow-red
  6. 0
  7. 86
  8. 7
  9. the one nearest an end
  10. orange-blue-red
  11. 170
  12. 710
  13. 15000
  14. blue-yellow-orange
  15. 21
  16. 66000
  17. 6.7
  18. violet-violet-black
  19. 92
  20. 380
  21. 9
  22. 2
  23. 31000
  24. 35
  25. 27
  26. 190
  27. 1100
  28. 3
  29. 870
  30. 810
  31. 8.7
  32. 1
  33. 63000
  34. 63
  35. 5100
  36. 8.2
  37. brown-black-orange
  38. 1.9
  39. 96
  40. 240

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