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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 656 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) grey-black-red (b) white-grey-red (c) grey-black-brown (d) grey-black-orange
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-orange (b) orange-green-red (c) orange-green-yellow (d) green-orange-orange
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) grey-violet-brown (b) violet-grey-red (c) violet-grey-brown (d) violet-grey-black
  8. 8.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) blue-yellow-brown (b) blue-yellow-black (c) violet-yellow-black (d) yellow-blue-black
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  12. 12.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-red (b) grey-orange-orange (c) orange-grey-red (d) grey-orange-brown
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-brown (b) blue-brown-brown (c) brown-blue-red (d) brown-blue-black
  23. 23.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-brown (c) brown-orange-black (d) orange-brown-black
  28. 28.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) yellow-grey-brown (b) yellow-grey-red (c) yellow-grey-orange (d) grey-yellow-red
  30. 30.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) grey-brown-red (b) brown-grey-orange (c) brown-grey-brown (d) brown-grey-red
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. grey-black-red
  2. 2
  3. 58000
  4. 570
  5. 380
  6. orange-green-orange
  7. violet-grey-brown
  8. 57
  9. 110
  10. blue-yellow-black
  11. the one nearest an end
  12. 61
  13. grey-orange-red
  14. 0
  15. 280
  16. 1800
  17. 7
  18. 330
  19. 62000
  20. 1
  21. 5 %
  22. brown-blue-brown
  23. 62
  24. 4
  25. 95000
  26. 1.3
  27. brown-orange-black
  28. 820
  29. yellow-grey-red
  30. 4.1
  31. 22
  32. 2.8
  33. 79000
  34. 4.3
  35. 5.5
  36. 400
  37. brown-grey-red
  38. 9
  39. 38
  40. 6

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