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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 562 · 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 2300 Ω resistor? (a) red-orange-brown (b) red-orange-red (c) red-orange-orange (d) orange-red-red
  2. 2.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-black (b) red-green-black (c) brown-green-brown (d) green-brown-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-green-orange (b) yellow-yellow-orange (c) yellow-yellow-yellow (d) yellow-yellow-red
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  6. 6.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does black stand for?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  9. 9.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  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 red, red, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-brown (b) yellow-green-brown (c) green-yellow-red (d) green-yellow-black
  21. 21.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) red-yellow-brown (b) yellow-red-brown (c) yellow-red-black (d) yellow-red-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) white-red-red (b) red-white-red (c) red-white-orange (d) red-white-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-yellow (c) brown-green-red (d) brown-green-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-yellow (b) red-black-red (c) orange-red-orange (d) red-black-orange
  26. 26.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) green-black-brown (b) blue-green-black (c) blue-black-black (d) green-black-black
  31. 31.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-orange (b) white-black-red (c) white-black-yellow (d) brown-white-orange
  38. 38.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-black (b) blue-white-black (c) green-white-brown (d) white-green-black

Answer key

  1. red-orange-red
  2. 630
  3. brown-green-black
  4. yellow-yellow-orange
  5. the one nearest an end
  6. 7300
  7. 0
  8. 5 %
  9. 49000
  10. 5
  11. 6
  12. 260
  13. 5300
  14. 42000
  15. 2.2
  16. 460
  17. 59
  18. 9
  19. 3
  20. green-yellow-brown
  21. 85
  22. yellow-red-brown
  23. red-white-red
  24. brown-green-orange
  25. red-black-orange
  26. 6.9
  27. 360
  28. 9500
  29. 89
  30. green-black-black
  31. 30
  32. 77
  33. 4400
  34. 4
  35. 46
  36. 230
  37. white-black-orange
  38. 3700
  39. 91
  40. green-white-black

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