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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 451 · 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 white stand for?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  3. 3.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-brown (b) yellow-black-orange (c) yellow-black-red (d) green-yellow-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-yellow (b) brown-red-orange (c) brown-brown-orange (d) brown-brown-red
  6. 6.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) yellow-red-black (b) orange-yellow-black (c) red-yellow-black (d) red-yellow-brown
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) orange-blue-black (b) blue-red-black (c) red-blue-brown (d) red-blue-black
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-brown (b) green-green-black (c) green-blue-black (d) blue-green-black
  15. 15.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) white-blue-black (c) blue-grey-black (d) grey-blue-brown
  34. 34.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-red (b) blue-violet-brown (c) violet-blue-black (d) violet-blue-brown
  37. 37.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 9
  2. 5 %
  3. 25
  4. yellow-black-red
  5. brown-brown-orange
  6. 15
  7. 1.8
  8. 52
  9. 230
  10. 79
  11. red-yellow-black
  12. the one nearest an end
  13. red-blue-black
  14. green-green-black
  15. 5500
  16. 6.7
  17. 3
  18. 150
  19. 2
  20. 83
  21. 1
  22. 530
  23. 6
  24. 18
  25. 0
  26. 7.3
  27. 1000
  28. 4
  29. 9300
  30. 9.1
  31. 91
  32. 930
  33. grey-blue-black
  34. 680
  35. 6.4
  36. violet-blue-brown
  37. 360
  38. 6.3
  39. 5
  40. 94

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