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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 400 · 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.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  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 240 Ω resistor? (a) red-yellow-red (b) red-yellow-brown (c) yellow-red-brown (d) red-yellow-black
  6. 6.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  7. 7.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) white-blue-red (c) blue-white-red (d) blue-white-orange
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) yellow-red-brown (b) green-red-black (c) red-yellow-black (d) yellow-red-black
  12. 12.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) violet-brown-brown (b) brown-violet-red (c) brown-violet-brown (d) brown-violet-black
  14. 14.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-black (c) brown-brown-brown (d) brown-red-black
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) green-black-black (c) green-yellow-black (d) yellow-black-brown
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) brown-green-brown (b) green-brown-black (c) green-brown-brown (d) green-brown-red
  35. 35.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 42
  2. 17
  3. 0
  4. 5 %
  5. red-yellow-brown
  6. the one nearest an end
  7. 8100
  8. blue-white-red
  9. 4
  10. 160
  11. yellow-red-black
  12. 1.5
  13. brown-violet-brown
  14. 41
  15. 41000
  16. 89
  17. 4.1
  18. 8
  19. 48
  20. 64000
  21. brown-brown-black
  22. 9
  23. 71000
  24. 3
  25. 63
  26. 5
  27. 22000
  28. 46
  29. 5000
  30. 27
  31. 710
  32. 890
  33. yellow-black-black
  34. green-brown-brown
  35. 93
  36. 3.7
  37. 18000
  38. 45
  39. 62
  40. 96

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