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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 648 · 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.

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  1. 1.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-orange-red (b) red-red-orange (c) red-red-brown (d) red-red-red
  6. 6.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-red (b) blue-blue-yellow (c) blue-violet-orange (d) blue-blue-orange
  10. 10.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-orange (c) grey-black-brown (d) grey-black-red
  16. 16.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does white stand for?
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-red (b) red-grey-orange (c) grey-red-red (d) red-grey-brown
  24. 24.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) green-brown-black (c) brown-yellow-black (d) yellow-brown-black
  27. 27.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does orange stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-red (b) white-black-orange (c) white-white-orange (d) white-white-yellow
  30. 30.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) brown-red-black (c) red-brown-black (d) brown-brown-black
  34. 34.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-yellow (b) white-green-red (c) white-green-orange (d) green-white-orange
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-brown (b) white-red-black (c) grey-red-black (d) red-grey-black

Answer key

  1. 8.6
  2. 73
  3. 2
  4. the one nearest an end
  5. red-red-red
  6. 660
  7. 60000
  8. 4
  9. blue-blue-orange
  10. 80
  11. 5 %
  12. 90000
  13. 49
  14. 4.4
  15. grey-black-red
  16. 870
  17. 9
  18. 8
  19. 16
  20. 94000
  21. 59000
  22. 66
  23. red-grey-red
  24. 99
  25. 95000
  26. yellow-brown-black
  27. 880
  28. 3
  29. white-white-orange
  30. 46
  31. 1800
  32. 550
  33. brown-brown-black
  34. 90
  35. 39000
  36. 22
  37. 9.6
  38. 9700
  39. white-green-orange
  40. grey-red-black

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