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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 525 · 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 grey, black, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-brown (b) grey-orange-red (c) orange-grey-red (d) orange-grey-orange
  5. 5.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) violet-green-red (b) green-violet-orange (c) green-violet-red (d) green-violet-brown
  7. 7.🌈 In the resistor colour code, which number does green stand for?
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  13. 13.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does grey stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) brown-green-black (b) green-brown-brown (c) blue-brown-black (d) green-brown-black
  18. 18.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) orange-grey-red (b) grey-orange-orange (c) grey-orange-red (d) grey-orange-brown
  22. 22.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-black (c) brown-brown-brown (d) brown-red-black
  24. 24.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) violet-blue-red (b) blue-violet-brown (c) blue-violet-red (d) blue-violet-orange
  28. 28.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) green-violet-black (b) violet-green-brown (c) grey-green-black (d) violet-green-black
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) yellow-red-yellow (b) red-yellow-orange (c) yellow-red-red (d) yellow-red-orange
  32. 32.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) yellow-blue-red (b) blue-yellow-red (c) blue-yellow-orange (d) blue-yellow-brown
  38. 38.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does yellow stand for?
  40. 40.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 80
  2. 67
  3. 1
  4. orange-grey-red
  5. 84000
  6. green-violet-red
  7. 5
  8. the one nearest an end
  9. 3
  10. 37
  11. 12
  12. 5 %
  13. 5000
  14. 9
  15. 50
  16. 8
  17. green-brown-black
  18. 5400
  19. 480
  20. 46
  21. grey-orange-red
  22. 9.2
  23. brown-brown-black
  24. 210
  25. 7
  26. 7.1
  27. blue-violet-red
  28. 4.6
  29. 5
  30. violet-green-black
  31. yellow-red-orange
  32. 680
  33. 6500
  34. 32
  35. 2
  36. 480
  37. blue-yellow-red
  38. 710
  39. 4
  40. 24

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