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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 650 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  2. 2.🌈 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
  3. 3.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) blue-grey-black (c) white-blue-black (d) grey-blue-brown
  5. 5.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-brown (b) red-brown-red (c) brown-red-red (d) brown-red-orange
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-orange (c) grey-orange-red (d) grey-orange-yellow
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-brown (b) violet-black-black (c) grey-black-black (d) grey-violet-black
  13. 13.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) white-grey-black (b) grey-black-black (c) grey-black-brown (d) white-black-black
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does yellow stand for?
  21. 21.🌈 In the resistor colour code, which number does black stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-yellow (b) brown-white-orange (c) brown-white-red (d) white-brown-orange
  23. 23.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) yellow-brown-black (b) brown-yellow-black (c) brown-yellow-brown (d) red-yellow-black
  25. 25.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) brown-white-red (b) white-black-red (c) white-black-orange (d) white-black-brown
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) brown-green-red (b) green-brown-red (c) green-brown-orange (d) green-brown-brown
  30. 30.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. 870
  4. grey-blue-black
  5. 1100
  6. 9
  7. 310
  8. 75
  9. brown-red-red
  10. grey-orange-orange
  11. 6
  12. violet-black-black
  13. 80
  14. 32
  15. grey-black-black
  16. 9
  17. 3
  18. 600
  19. 820
  20. 4
  21. 0
  22. brown-white-orange
  23. 880
  24. brown-yellow-black
  25. 27000
  26. 4.2
  27. 160
  28. white-black-red
  29. green-brown-red
  30. 4.5
  31. 92000
  32. 47000
  33. 58
  34. 61
  35. 5.7
  36. 36
  37. 4000
  38. 790
  39. 62
  40. 68000

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