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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 110 · 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.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  7. 7.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-brown (b) red-green-black (c) blue-red-black (d) green-red-black
  10. 10.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-orange (b) red-white-red (c) red-white-yellow (d) white-red-orange
  12. 12.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-black (b) white-orange-black (c) yellow-white-black (d) orange-white-brown
  14. 14.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-orange (b) blue-black-brown (c) blue-black-red (d) violet-blue-red
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-red (b) orange-orange-black (c) orange-yellow-brown (d) orange-orange-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) grey-black-brown (b) white-grey-red (c) grey-black-orange (d) grey-black-red
  22. 22.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) red-brown-black (c) brown-brown-black (d) brown-red-black
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 In the resistor colour code, which number does orange stand for?
  26. 26.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-orange (b) brown-green-yellow (c) green-brown-orange (d) brown-green-red
  30. 30.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does yellow stand for?
  34. 34.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 370
  2. 2
  3. 5 %
  4. 9
  5. 6
  6. the one nearest an end
  7. 450
  8. 56000
  9. green-red-black
  10. 41
  11. red-white-orange
  12. 3.5
  13. orange-white-black
  14. 3.3
  15. 8
  16. 9600
  17. blue-black-red
  18. 0
  19. 2.2
  20. orange-orange-brown
  21. grey-black-red
  22. 26
  23. brown-brown-black
  24. 7
  25. 3
  26. 3.2
  27. 8100
  28. 410
  29. brown-green-orange
  30. 880
  31. 35
  32. 23000
  33. 4
  34. 78
  35. 14
  36. 82
  37. 2100
  38. 25000
  39. 110
  40. 95

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