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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 430 · 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 orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-black (b) green-violet-brown (c) violet-green-black (d) blue-violet-black
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-brown (b) blue-grey-black (c) grey-blue-black (d) violet-grey-black
  5. 5.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85000 Ω resistor? (a) grey-green-yellow (b) grey-green-red (c) grey-green-orange (d) green-grey-orange
  7. 7.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-red (b) yellow-green-brown (c) green-yellow-brown (d) yellow-green-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) white-green-brown (b) white-green-black (c) green-white-black (d) brown-green-black
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  15. 15.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-red (b) green-white-orange (c) white-green-orange (d) green-white-yellow
  24. 24.🌈 In the resistor colour code, which number does black stand for?
  25. 25.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does red stand for?
  28. 28.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-black (b) green-yellow-brown (c) yellow-black-brown (d) yellow-black-red
  31. 31.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-red (b) red-brown-brown (c) brown-red-brown (d) brown-red-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-black (b) blue-black-red (c) violet-blue-brown (d) blue-black-brown
  37. 37.🌈 In the resistor colour code, which number does green stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) violet-brown-orange (b) brown-violet-red (c) brown-violet-orange (d) brown-violet-yellow
  39. 39.🌈 In the resistor colour code, which number does yellow stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) green-blue-red (b) blue-green-orange (c) blue-green-red (d) blue-green-brown

Answer key

  1. 30
  2. 1
  3. green-violet-black
  4. blue-grey-black
  5. 61000
  6. grey-green-orange
  7. 910
  8. 63
  9. 3500
  10. 6
  11. the one nearest an end
  12. yellow-green-brown
  13. white-green-black
  14. 5 %
  15. 5.4
  16. 290
  17. 5.6
  18. 510
  19. 360
  20. 4
  21. 33
  22. 2800
  23. green-white-orange
  24. 0
  25. 7.1
  26. 1700
  27. 2
  28. 3900
  29. 160
  30. yellow-black-brown
  31. 76
  32. 33
  33. 77
  34. 76000
  35. brown-red-brown
  36. blue-black-brown
  37. 5
  38. brown-violet-orange
  39. 4
  40. blue-green-red

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