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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 579 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  3. 3.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) grey-violet-red (b) violet-black-brown (c) violet-black-red (d) violet-black-orange
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) orange-yellow-black (b) yellow-yellow-black (c) orange-yellow-brown (d) yellow-orange-black
  7. 7.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-white-orange (b) grey-grey-red (c) grey-grey-yellow (d) grey-grey-orange
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-brown (b) brown-red-red (c) brown-red-black (d) red-brown-brown
  11. 11.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-orange (b) brown-orange-red (c) brown-orange-brown (d) orange-brown-red
  14. 14.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-brown (b) white-brown-orange (c) brown-white-red (d) white-brown-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-orange (b) white-brown-red (c) brown-white-brown (d) brown-white-red
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) orange-blue-red (c) blue-orange-orange (d) orange-blue-orange
  18. 18.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-brown (b) orange-black-black (c) orange-red-black (d) red-black-black
  26. 26.🌈 In the resistor colour code, which number does white stand for?
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) yellow-grey-yellow (b) yellow-grey-orange (c) grey-yellow-orange (d) yellow-grey-red
  37. 37.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-brown (b) brown-blue-black (c) blue-brown-black (d) violet-brown-black

Answer key

  1. 0
  2. the one nearest an end
  3. 12
  4. 5 %
  5. violet-black-red
  6. orange-yellow-black
  7. 58
  8. 5
  9. grey-grey-orange
  10. brown-red-brown
  11. 6000
  12. 100
  13. brown-orange-red
  14. 6.8
  15. white-brown-red
  16. brown-white-red
  17. orange-blue-orange
  18. 250
  19. 640
  20. 7800
  21. 180
  22. 40
  23. 3
  24. 680
  25. red-black-black
  26. 9
  27. 6
  28. 460
  29. 6.5
  30. 17
  31. 400
  32. 9.3
  33. 1000
  34. 200
  35. 12000
  36. yellow-grey-orange
  37. 14
  38. 5400
  39. 830
  40. blue-brown-black

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