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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 575 · 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.

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  1. 1.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-black (b) red-blue-brown (c) red-blue-red (d) blue-red-brown
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  4. 4.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) blue-grey-red (c) blue-grey-orange (d) grey-blue-red
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) green-yellow-black (b) yellow-yellow-black (c) yellow-yellow-brown (d) yellow-green-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-black (c) brown-yellow-black (d) green-brown-black
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) blue-grey-black (b) white-blue-black (c) grey-blue-brown (d) grey-blue-black
  13. 13.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  17. 17.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-orange (b) yellow-green-red (c) yellow-yellow-brown (d) yellow-yellow-red
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-black (b) violet-white-brown (c) white-violet-red (d) white-violet-brown
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-brown (b) brown-red-black (c) white-red-black (d) red-white-black
  28. 28.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-orange (b) grey-violet-orange (c) violet-black-yellow (d) violet-black-red
  37. 37.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-red (b) brown-grey-brown (c) brown-grey-black (d) grey-brown-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) yellow-orange-black (c) orange-orange-brown (d) orange-orange-black

Answer key

  1. 320
  2. red-blue-brown
  3. the one nearest an end
  4. 630
  5. 730
  6. blue-grey-red
  7. yellow-yellow-black
  8. yellow-brown-black
  9. 7
  10. 35000
  11. 0
  12. grey-blue-black
  13. 79
  14. 3
  15. 77
  16. 5 %
  17. 200
  18. yellow-yellow-red
  19. 6
  20. 3900
  21. 4
  22. white-violet-brown
  23. 2
  24. 93
  25. 89
  26. 5
  27. white-red-black
  28. 38000
  29. 65
  30. 30
  31. 330
  32. 1.3
  33. 51
  34. 22
  35. 1000
  36. violet-black-orange
  37. 7100
  38. 68
  39. brown-grey-brown
  40. orange-orange-black

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