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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 168 · 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.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  3. 3.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 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
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-brown (b) yellow-orange-red (c) orange-black-red (d) orange-black-orange
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) blue-green-orange (b) green-blue-orange (c) green-blue-red (d) green-blue-yellow
  22. 22.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-brown (b) blue-white-black (c) white-blue-black (d) brown-blue-black
  29. 29.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) yellow-white-red (b) white-yellow-orange (c) yellow-white-yellow (d) yellow-white-orange
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-white-orange (b) grey-grey-yellow (c) grey-grey-red (d) grey-grey-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-brown-brown (c) brown-brown-red (d) brown-red-brown
  37. 37.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-red (b) violet-blue-orange (c) violet-blue-yellow (d) blue-violet-orange
  40. 40.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 58
  2. the one nearest an end
  3. 7.7
  4. 8
  5. 3600
  6. 500
  7. 47
  8. 5600
  9. 45
  10. 36000
  11. 64
  12. 740
  13. 69000
  14. 0
  15. green-red-black
  16. 9
  17. 12
  18. orange-black-red
  19. 3
  20. 3700
  21. green-blue-orange
  22. 24
  23. 72
  24. 120
  25. 5 %
  26. 2
  27. 440
  28. white-blue-black
  29. 820
  30. 30
  31. 1.7
  32. 4100
  33. 57
  34. yellow-white-orange
  35. grey-grey-orange
  36. brown-brown-brown
  37. 800
  38. 70000
  39. violet-blue-orange
  40. 4.2

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