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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 448 · 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 5000 Ω resistor? (a) blue-green-red (b) green-black-red (c) green-black-orange (d) green-black-brown
  2. 2.🌈 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
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) blue-brown-orange (b) brown-blue-yellow (c) brown-blue-orange (d) brown-blue-red
  4. 4.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-yellow (b) violet-yellow-red (c) violet-yellow-orange (d) yellow-violet-orange
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-green-black (b) yellow-green-brown (c) yellow-green-black (d) green-yellow-black
  16. 16.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-red (b) white-black-brown (c) brown-white-brown (d) white-black-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) grey-red-red (c) grey-red-orange (d) red-grey-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) grey-blue-brown (c) blue-grey-black (d) white-blue-black
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-orange (b) blue-red-red (c) blue-red-yellow (d) red-blue-orange
  27. 27.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-brown (b) grey-green-black (c) white-green-black (d) green-grey-black
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?

Answer key

  1. green-black-red
  2. the one nearest an end
  3. brown-blue-orange
  4. 270
  5. 9
  6. 4
  7. 2.4
  8. 5 %
  9. 7
  10. 48000
  11. 1400
  12. violet-yellow-orange
  13. 8
  14. 9100
  15. yellow-green-black
  16. 2900
  17. 1200
  18. 590
  19. white-black-brown
  20. grey-red-orange
  21. grey-blue-black
  22. 2
  23. 380
  24. 54
  25. 32
  26. blue-red-orange
  27. 20
  28. 69
  29. 300
  30. 560
  31. grey-green-black
  32. 1
  33. 6
  34. 9.3
  35. 94
  36. 69
  37. 89000
  38. 4.8
  39. 4000
  40. 40

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