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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 342 · 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 brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  6. 6.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8900 Ω resistor? (a) grey-white-red (b) white-grey-red (c) grey-white-orange (d) grey-white-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-red-orange (c) brown-brown-yellow (d) brown-brown-orange
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) violet-white-brown (b) white-violet-black (c) grey-white-black (d) violet-white-black
  11. 11.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-red (b) brown-white-black (c) white-brown-brown (d) brown-white-brown
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) orange-red-orange (b) red-orange-red (c) red-orange-orange (d) red-orange-yellow
  16. 16.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-red (c) violet-red-yellow (d) violet-red-orange
  19. 19.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does violet stand for?
  21. 21.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-black (b) violet-red-black (c) orange-violet-black (d) red-violet-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-orange (b) green-yellow-red (c) yellow-green-red (d) yellow-green-brown
  25. 25.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-orange (b) blue-violet-red (c) blue-violet-brown (d) violet-blue-red
  32. 32.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does grey stand for?
  35. 35.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-brown (b) orange-yellow-red (c) orange-yellow-orange (d) yellow-orange-red
  37. 37.🌈 In the resistor colour code, which number does brown stand for?
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?

Answer key

  1. 1.6
  2. 32
  3. 3
  4. the one nearest an end
  5. 5 %
  6. 62000
  7. grey-white-red
  8. brown-brown-orange
  9. 5
  10. violet-white-black
  11. 330
  12. 4
  13. 46
  14. brown-white-brown
  15. red-orange-orange
  16. 820
  17. 6500
  18. violet-red-orange
  19. 3.9
  20. 7
  21. 540
  22. 2.9
  23. red-violet-black
  24. yellow-green-red
  25. 87000
  26. 80000
  27. 530
  28. 2
  29. 0
  30. 7400
  31. blue-violet-red
  32. 97
  33. 160
  34. 8
  35. 58
  36. orange-yellow-red
  37. 1
  38. 6
  39. 24
  40. 49

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