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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 284 · 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 10 Ω resistor? (a) brown-black-black (b) red-black-black (c) red-brown-black (d) brown-black-brown
  2. 2.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 In the resistor colour code, which number does yellow stand for?
  6. 6.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-black (b) white-red-red (c) white-red-brown (d) red-white-brown
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does green stand for?
  12. 12.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-black (c) yellow-black-brown (d) green-yellow-black
  14. 14.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) white-black-black (b) grey-black-brown (c) grey-black-black (d) white-grey-black
  16. 16.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) orange-blue-red (b) blue-orange-red (c) blue-orange-brown (d) blue-orange-orange
  18. 18.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) brown-blue-black (b) blue-brown-brown (c) violet-brown-black (d) blue-brown-black
  21. 21.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 In the resistor colour code, which number does grey stand for?
  29. 29.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does brown stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-orange (b) orange-green-red (c) green-orange-orange (d) orange-green-yellow
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) brown-yellow-black (c) red-yellow-black (d) yellow-brown-black
  38. 38.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?

Answer key

  1. brown-black-black
  2. 8.7
  3. 2100
  4. 7
  5. 4
  6. 51
  7. 5 %
  8. white-red-brown
  9. 9
  10. 250
  11. 5
  12. the one nearest an end
  13. yellow-black-black
  14. 44000
  15. grey-black-black
  16. 9500
  17. blue-orange-red
  18. 40000
  19. 1600
  20. blue-brown-black
  21. 51000
  22. 95
  23. 3700
  24. 54000
  25. 0
  26. 4.4
  27. 6
  28. 8
  29. 5.3
  30. 1
  31. orange-green-orange
  32. 2
  33. 1.2
  34. 3
  35. 19
  36. 110
  37. brown-yellow-black
  38. 380
  39. 13
  40. 710

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