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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 936 · 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.

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  1. 1.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-red (b) green-red-black (c) green-red-brown (d) red-green-brown
  7. 7.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 890 Ω resistor? (a) white-grey-brown (b) grey-white-black (c) grey-white-brown (d) grey-white-red
  11. 11.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-red (b) violet-blue-red (c) blue-black-orange (d) blue-black-brown
  13. 13.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-red (b) green-red-yellow (c) green-red-orange (d) red-green-orange
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) brown-green-orange (b) green-brown-yellow (c) green-brown-red (d) green-brown-orange
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-black (b) blue-blue-brown (c) blue-violet-black (d) violet-blue-black
  27. 27.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-brown (b) green-yellow-black (c) green-black-black (d) yellow-black-black
  29. 29.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) white-violet-brown (b) violet-white-red (c) violet-white-brown (d) violet-white-black
  33. 33.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) orange-brown-black (c) brown-orange-black (d) brown-orange-brown
  36. 36.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) grey-yellow-red (b) yellow-grey-brown (c) yellow-grey-orange (d) yellow-grey-red
  39. 39.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?

Answer key

  1. 460
  2. 61000
  3. 9
  4. 8
  5. 5 %
  6. green-red-brown
  7. 76
  8. the one nearest an end
  9. 6
  10. grey-white-brown
  11. 360
  12. blue-black-red
  13. 63000
  14. 39
  15. green-red-orange
  16. 5
  17. green-brown-orange
  18. 0
  19. 520
  20. 620
  21. 880
  22. 65
  23. 7.9
  24. 9900
  25. 7700
  26. blue-blue-black
  27. 48
  28. yellow-black-black
  29. 93
  30. 4.6
  31. 620
  32. violet-white-brown
  33. 88
  34. 41
  35. brown-orange-black
  36. 8.9
  37. 7.2
  38. yellow-grey-red
  39. 310
  40. 35000

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