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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 383 · 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 gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-brown (b) violet-orange-black (c) orange-violet-black (d) yellow-violet-black
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) grey-yellow-orange (b) yellow-grey-red (c) yellow-grey-yellow (d) yellow-grey-orange
  4. 4.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does black stand for?
  8. 8.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-brown (c) red-black-orange (d) orange-red-red
  19. 19.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  20. 20.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  21. 21.🌈 In the resistor colour code, which number does orange stand for?
  22. 22.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) yellow-white-yellow (b) yellow-white-red (c) yellow-white-orange (d) white-yellow-orange
  24. 24.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) yellow-brown-black (b) brown-orange-black (c) orange-brown-brown (d) orange-brown-black
  33. 33.🌈 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
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) blue-black-red (d) violet-blue-brown
  35. 35.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-red (b) red-green-black (c) red-green-brown (d) green-red-brown
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. 5 %
  2. orange-violet-black
  3. yellow-grey-orange
  4. 37000
  5. 4.4
  6. 630
  7. 0
  8. 1.8
  9. 5300
  10. 4
  11. 140
  12. 75000
  13. 970
  14. 82
  15. 2
  16. 7
  17. 85
  18. red-black-red
  19. 580
  20. the one nearest an end
  21. 3
  22. 96
  23. yellow-white-orange
  24. 77
  25. 37
  26. 9.7
  27. 630
  28. 47000
  29. 710
  30. 79
  31. 74
  32. orange-brown-black
  33. grey-black-red
  34. blue-black-brown
  35. 4.9
  36. 93
  37. 44
  38. 80
  39. red-green-brown
  40. 5

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