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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 100 · 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 gold band (b) the one nearest an end (c) the widest gap (d) any band
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-red (b) green-blue-brown (c) blue-green-brown (d) blue-green-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) yellow-black-orange (c) green-yellow-orange (d) yellow-black-red
  13. 13.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-brown (b) orange-white-red (c) white-orange-orange (d) white-orange-red
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-brown (b) orange-violet-orange (c) violet-orange-red (d) orange-violet-red
  19. 19.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-orange (b) white-red-brown (c) white-red-red (d) red-white-red
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does white stand for?
  27. 27.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does orange stand for?
  32. 32.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-yellow (b) brown-black-red (c) red-brown-orange (d) brown-black-orange
  34. 34.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) green-yellow-brown (b) yellow-black-black (c) yellow-black-brown (d) yellow-black-red
  38. 38.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) violet-green-black (b) green-violet-brown (c) blue-violet-black (d) green-violet-black
  40. 40.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 5 %
  3. 60000
  4. 1
  5. 100
  6. 10
  7. 21000
  8. 19
  9. 950
  10. 30
  11. blue-green-brown
  12. yellow-black-orange
  13. 62
  14. 8.7
  15. white-orange-red
  16. 5
  17. 1.1
  18. orange-violet-red
  19. 69000
  20. 33
  21. white-red-red
  22. 2
  23. 410
  24. 7
  25. 450
  26. 9
  27. 450
  28. 590
  29. 7
  30. 86000
  31. 3
  32. 8200
  33. brown-black-orange
  34. 93
  35. 74
  36. 580
  37. yellow-black-brown
  38. 180
  39. green-violet-black
  40. 10

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