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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 582 · 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 band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 In the resistor colour code, which number does violet stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-brown (b) green-yellow-brown (c) yellow-green-black (d) yellow-green-red
  10. 10.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) green-grey-black (b) grey-green-black (c) grey-green-brown (d) white-green-black
  13. 13.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) brown-blue-red (b) blue-brown-brown (c) blue-brown-red (d) blue-brown-orange
  22. 22.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-orange (b) violet-green-brown (c) violet-green-red (d) green-violet-red
  25. 25.🌈 In the resistor colour code, which number does blue stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) white-violet-black (c) white-violet-brown (d) brown-violet-black
  27. 27.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85000 Ω resistor? (a) green-grey-orange (b) grey-green-orange (c) grey-green-yellow (d) grey-green-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-yellow-red (b) orange-orange-brown (c) orange-orange-red (d) orange-orange-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) orange-white-brown (d) orange-white-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) white-green-black (b) white-green-brown (c) green-white-black (d) brown-green-black

Answer key

  1. the one nearest an end
  2. 7
  3. 5 %
  4. 3
  5. 2700
  6. 23
  7. 3800
  8. 8
  9. yellow-green-brown
  10. 37
  11. 27
  12. grey-green-black
  13. 900
  14. 42000
  15. 63000
  16. 70
  17. 840
  18. 4
  19. 44000
  20. 390
  21. blue-brown-red
  22. 48
  23. 4
  24. violet-green-red
  25. 6
  26. white-violet-black
  27. 5300
  28. 310
  29. 800
  30. 3
  31. 83
  32. 17
  33. 18
  34. 48
  35. 6.6
  36. 120
  37. grey-green-orange
  38. orange-orange-red
  39. orange-white-brown
  40. white-green-black

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