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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 716 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-black (b) yellow-violet-black (c) orange-violet-brown (d) violet-orange-black
  2. 2.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) brown-violet-black (b) white-violet-brown (c) violet-white-black (d) white-violet-black
  12. 12.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-black (c) brown-yellow-red (d) brown-yellow-brown
  16. 16.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-orange (b) red-white-orange (c) white-red-yellow (d) white-red-red
  20. 20.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-yellow (b) red-brown-red (c) red-brown-orange (d) brown-red-orange
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-orange (b) yellow-grey-orange (c) grey-yellow-yellow (d) grey-yellow-red
  33. 33.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) violet-green-black (b) blue-green-brown (c) blue-green-black (d) green-blue-black
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?

Answer key

  1. orange-violet-black
  2. 3100
  3. the one nearest an end
  4. 7
  5. 6
  6. 300
  7. 520
  8. 82000
  9. 5.7
  10. 3
  11. white-violet-black
  12. 400
  13. 27000
  14. 5 %
  15. brown-yellow-brown
  16. 10000
  17. 3.6
  18. 2
  19. white-red-orange
  20. 6.1
  21. 1500
  22. 16000
  23. 500
  24. 4200
  25. 220
  26. red-brown-orange
  27. 8
  28. 280
  29. 420
  30. 1900
  31. 76
  32. grey-yellow-orange
  33. 70000
  34. 69
  35. 39
  36. 5
  37. 48
  38. blue-green-black
  39. 1
  40. 18000

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