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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 11 · 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 yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  4. 4.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  9. 9.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-red (b) green-white-brown (c) white-green-brown (d) green-white-black
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) violet-brown-black (b) blue-brown-brown (c) blue-brown-black (d) brown-blue-black
  12. 12.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) orange-blue-black (b) yellow-blue-black (c) blue-orange-black (d) orange-blue-brown
  16. 16.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-yellow (c) brown-white-red (d) brown-white-orange
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) yellow-red-orange (b) red-yellow-yellow (c) red-yellow-orange (d) red-yellow-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-yellow-red (b) orange-orange-orange (c) orange-orange-red (d) orange-orange-brown
  21. 21.🌈 In the resistor colour code, which number does orange stand for?
  22. 22.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-black (b) red-orange-brown (c) orange-red-brown (d) orange-red-red
  25. 25.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-black (c) green-blue-red (d) green-blue-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) orange-violet-black (b) red-violet-brown (c) violet-red-black (d) red-violet-black
  32. 32.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) blue-yellow-orange (b) yellow-blue-yellow (c) yellow-blue-orange (d) yellow-blue-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-orange (b) grey-white-red (c) white-grey-brown (d) white-grey-red
  35. 35.🌈 In the resistor colour code, which number does blue stand for?
  36. 36.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does violet stand for?
  39. 39.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-red (c) green-grey-brown (d) green-grey-black

Answer key

  1. 470
  2. 25
  3. 5 %
  4. 60
  5. 89
  6. 180
  7. 900
  8. the one nearest an end
  9. 4.6
  10. green-white-brown
  11. blue-brown-black
  12. 49
  13. 0
  14. 4
  15. orange-blue-black
  16. 890
  17. brown-white-orange
  18. 2
  19. red-yellow-orange
  20. orange-orange-red
  21. 3
  22. 85000
  23. 9
  24. orange-red-brown
  25. 37
  26. 1
  27. 5
  28. 920
  29. 13000
  30. green-blue-brown
  31. red-violet-black
  32. 7.3
  33. yellow-blue-orange
  34. white-grey-red
  35. 6
  36. 2.4
  37. 300
  38. 7
  39. 43
  40. green-grey-brown

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