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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 591 · 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 green, grey, black. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-white-red (b) grey-grey-red (c) grey-grey-brown (d) grey-grey-orange
  10. 10.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) brown-violet-black (b) violet-brown-black (c) grey-brown-black (d) violet-brown-brown
  20. 20.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) violet-blue-red (b) blue-black-brown (c) blue-black-orange (d) blue-black-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) blue-red-orange (b) red-blue-yellow (c) red-blue-red (d) red-blue-orange
  23. 23.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  24. 24.🌈 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
  25. 25.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-red (b) green-black-black (c) blue-green-brown (d) green-black-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-brown (b) red-violet-red (c) violet-red-red (d) violet-red-orange
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-yellow (b) white-violet-orange (c) violet-white-orange (d) violet-white-red
  36. 36.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-brown (b) grey-brown-black (c) red-grey-black (d) brown-grey-black
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-orange (b) grey-violet-yellow (c) grey-violet-red (d) violet-grey-orange
  40. 40.🌈 In the resistor colour code, which number does orange stand for?

Answer key

  1. 58
  2. 8
  3. 30000
  4. 5
  5. 75
  6. 460
  7. 5300
  8. 5 %
  9. grey-grey-red
  10. 88000
  11. 8000
  12. 3000
  13. 69
  14. 620
  15. 59000
  16. 3800
  17. 2
  18. 0
  19. violet-brown-black
  20. 97
  21. blue-black-red
  22. red-blue-orange
  23. 1100
  24. the one nearest an end
  25. 9.9
  26. 49
  27. 3600
  28. 2100
  29. 44000
  30. green-black-brown
  31. violet-red-red
  32. 1
  33. 91000
  34. 4
  35. violet-white-orange
  36. 950
  37. brown-grey-black
  38. 9
  39. grey-violet-orange
  40. 3

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