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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 29 · 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) any band (c) the widest gap (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-black (b) red-brown-brown (c) brown-black-brown (d) brown-black-red
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) blue-black-black (b) blue-green-black (c) green-black-brown (d) green-black-black
  6. 6.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) red-yellow-black (b) red-yellow-brown (c) yellow-red-black (d) orange-yellow-black
  8. 8.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-orange (b) brown-brown-red (c) brown-brown-yellow (d) brown-red-orange
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-brown (b) yellow-white-orange (c) yellow-white-red (d) white-yellow-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-red (b) brown-grey-black (c) grey-brown-brown (d) brown-grey-brown
  16. 16.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) green-red-brown (b) red-green-red (c) red-green-black (d) red-green-brown
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) orange-yellow-black (b) yellow-orange-black (c) yellow-orange-brown (d) green-orange-black
  20. 20.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-red-brown (c) brown-brown-brown (d) brown-brown-red
  23. 23.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) grey-blue-black (b) violet-blue-black (c) violet-blue-brown (d) blue-violet-black
  25. 25.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) red-orange-orange (c) orange-red-red (d) orange-red-orange
  31. 31.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does brown stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-red (b) grey-red-black (c) grey-red-brown (d) red-grey-brown
  35. 35.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does green stand for?
  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 9200 Ω resistor? (a) white-red-orange (b) red-white-red (c) white-red-brown (d) white-red-red
  40. 40.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 630
  3. brown-black-brown
  4. 5 %
  5. green-black-black
  6. 51
  7. red-yellow-black
  8. 44
  9. 6
  10. 52
  11. 9
  12. 9.1
  13. brown-brown-orange
  14. yellow-white-red
  15. brown-grey-brown
  16. 1800
  17. 72
  18. red-green-brown
  19. yellow-orange-black
  20. 3.7
  21. 54000
  22. brown-brown-brown
  23. 780
  24. violet-blue-black
  25. 4.9
  26. 4
  27. 3
  28. 80
  29. 6400
  30. orange-red-orange
  31. 7.6
  32. 30
  33. 1
  34. grey-red-brown
  35. 6.7
  36. 1.1
  37. 5
  38. 68
  39. white-red-red
  40. 3.2

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