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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 942 · 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 61 Ω resistor? (a) violet-brown-black (b) blue-brown-brown (c) brown-blue-black (d) blue-brown-black
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  3. 3.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) brown-white-black (b) white-black-black (c) white-white-black (d) white-white-brown
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54000 Ω resistor? (a) green-yellow-yellow (b) green-yellow-orange (c) yellow-green-orange (d) green-yellow-red
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) yellow-blue-brown (c) blue-yellow-brown (d) blue-yellow-red
  12. 12.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) yellow-red-orange (b) red-yellow-orange (c) yellow-red-yellow (d) yellow-red-red
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) brown-green-red (b) green-brown-brown (c) green-brown-red (d) green-brown-orange
  19. 19.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-black-black (b) orange-black-black (c) yellow-orange-black (d) orange-black-brown
  23. 23.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  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 13 Ω resistor? (a) brown-orange-black (b) orange-brown-black (c) brown-orange-brown (d) red-orange-black
  27. 27.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) orange-white-black (c) yellow-white-black (d) white-orange-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-red (c) white-red-orange (d) white-red-brown
  34. 34.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) brown-white-yellow (d) brown-white-orange
  37. 37.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. blue-brown-black
  2. the one nearest an end
  3. 36000
  4. 5 %
  5. white-white-black
  6. 8
  7. 86000
  8. 100
  9. 3
  10. green-yellow-orange
  11. blue-yellow-brown
  12. 53000
  13. yellow-red-orange
  14. 7
  15. 330
  16. 20
  17. 99
  18. green-brown-red
  19. 2
  20. 840
  21. 940
  22. orange-black-black
  23. 1900
  24. 4
  25. 5
  26. brown-orange-black
  27. 1800
  28. 9600
  29. 27
  30. 310
  31. 74
  32. orange-white-black
  33. white-red-red
  34. 250
  35. 4800
  36. brown-white-orange
  37. 2.6
  38. 860
  39. 4200
  40. 9

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