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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 378 · 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) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) white-violet-red (b) violet-white-orange (c) violet-white-red (d) violet-white-brown
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  4. 4.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-yellow (b) grey-blue-red (c) blue-grey-orange (d) grey-blue-orange
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) orange-green-orange (b) green-orange-red (c) green-orange-orange (d) green-orange-yellow
  10. 10.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) orange-brown-brown (b) brown-orange-red (c) brown-orange-black (d) brown-orange-brown
  12. 12.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) yellow-white-black (b) white-yellow-brown (c) yellow-white-red (d) yellow-white-brown
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-orange (b) violet-blue-orange (c) blue-violet-yellow (d) blue-violet-red
  16. 16.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-red (b) blue-white-orange (c) white-blue-yellow (d) white-blue-orange
  19. 19.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-red (b) red-blue-brown (c) red-blue-orange (d) blue-red-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-black (b) brown-red-black (c) red-brown-brown (d) orange-brown-black
  26. 26.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does blue stand for?
  30. 30.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) grey-blue-orange (b) grey-blue-brown (c) blue-grey-red (d) grey-blue-red
  32. 32.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does brown stand for?
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-yellow (b) orange-yellow-orange (c) orange-orange-orange (d) orange-orange-red
  38. 38.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. violet-white-red
  3. 5 %
  4. 680
  5. 39
  6. 120
  7. 28000
  8. grey-blue-orange
  9. green-orange-orange
  10. 87
  11. brown-orange-brown
  12. 380
  13. 140
  14. yellow-white-brown
  15. blue-violet-orange
  16. 67000
  17. 7
  18. white-blue-orange
  19. 5400
  20. 21
  21. 7500
  22. 22
  23. 74
  24. red-blue-red
  25. red-brown-black
  26. 3300
  27. 11000
  28. 790
  29. 6
  30. 6500
  31. grey-blue-red
  32. 850
  33. 1
  34. 9
  35. 73000
  36. 5
  37. orange-orange-orange
  38. 28
  39. 2.7
  40. 390

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