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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 934 · 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.🌈 In the resistor colour code, which number does orange stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) yellow-violet-yellow (b) violet-yellow-orange (c) yellow-violet-red (d) yellow-violet-orange
  3. 3.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-red (b) green-brown-yellow (c) brown-green-orange (d) green-brown-orange
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  10. 10.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) red-violet-black (b) violet-brown-black (c) brown-violet-black (d) brown-violet-brown
  12. 12.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 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
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) grey-blue-red (c) blue-grey-orange (d) blue-grey-red
  15. 15.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) yellow-red-black (b) red-yellow-brown (c) red-yellow-black (d) orange-yellow-black
  17. 17.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-brown (b) violet-orange-red (c) orange-violet-orange (d) orange-violet-red
  27. 27.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does grey stand for?
  37. 37.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?

Answer key

  1. 3
  2. yellow-violet-orange
  3. 82
  4. 1
  5. green-brown-orange
  6. 7
  7. 53
  8. 6
  9. 5 %
  10. 55000
  11. brown-violet-black
  12. 40
  13. the one nearest an end
  14. blue-grey-red
  15. 370
  16. red-yellow-black
  17. 41000
  18. 29
  19. 11
  20. 4000
  21. 2000
  22. 26
  23. 9
  24. 100
  25. 5
  26. orange-violet-red
  27. 260
  28. 56
  29. 85000
  30. 4
  31. 900
  32. 1100
  33. 49000
  34. 3000
  35. 58
  36. 8
  37. 430
  38. 70
  39. 14
  40. 66

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