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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 862 · 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 91000 Ω resistor? (a) white-brown-yellow (b) white-brown-red (c) brown-white-orange (d) white-brown-orange
  2. 2.🌈 In the resistor colour code, which number does white stand for?
  3. 3.🌈 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
  4. 4.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) violet-brown-yellow (c) brown-violet-orange (d) violet-brown-orange
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) orange-blue-black (b) blue-orange-black (c) orange-blue-brown (d) yellow-blue-black
  9. 9.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) blue-orange-brown (b) blue-orange-black (c) orange-blue-brown (d) blue-orange-red
  12. 12.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-yellow (b) white-red-orange (c) red-white-red (d) red-white-orange
  14. 14.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) yellow-violet-orange (b) yellow-violet-brown (c) violet-yellow-red (d) yellow-violet-red
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) yellow-blue-black (b) violet-yellow-black (c) blue-yellow-brown (d) blue-yellow-black
  20. 20.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) blue-orange-red (c) orange-blue-brown (d) orange-blue-red
  24. 24.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-brown (b) orange-brown-red (c) brown-orange-orange (d) brown-orange-red
  27. 27.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  29. 29.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  30. 30.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-black (b) brown-blue-brown (c) blue-brown-brown (d) blue-brown-red
  37. 37.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-brown (b) green-blue-red (c) blue-green-red (d) blue-green-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) blue-grey-orange (c) grey-blue-red (d) blue-grey-red
  40. 40.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. white-brown-orange
  2. 9
  3. the one nearest an end
  4. 3800
  5. 48
  6. 2
  7. violet-brown-orange
  8. orange-blue-black
  9. 64
  10. 6
  11. blue-orange-brown
  12. 8.3
  13. red-white-orange
  14. 69
  15. 3
  16. yellow-violet-red
  17. 1
  18. 8
  19. blue-yellow-black
  20. 400
  21. 260
  22. 530
  23. orange-blue-red
  24. 6100
  25. 49000
  26. brown-orange-red
  27. 320
  28. 6600
  29. 5 %
  30. 42
  31. 61
  32. 170
  33. 7.1
  34. 1500
  35. 660
  36. blue-brown-brown
  37. 72
  38. blue-green-red
  39. blue-grey-red
  40. 90

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