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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 902 · 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 730 Ω resistor? (a) violet-orange-red (b) orange-violet-brown (c) violet-orange-brown (d) violet-orange-black
  2. 2.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 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
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  8. 8.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) red-violet-brown (c) violet-red-brown (d) red-violet-black
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) yellow-blue-brown (b) blue-yellow-red (c) yellow-blue-orange (d) yellow-blue-red
  15. 15.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 In the resistor colour code, which number does orange stand for?
  23. 23.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-orange (b) grey-violet-orange (c) violet-black-red (d) violet-black-yellow
  28. 28.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-orange (b) green-white-red (c) white-green-orange (d) green-white-yellow
  32. 32.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-red (b) blue-blue-black (c) blue-blue-brown (d) blue-violet-brown
  35. 35.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. violet-orange-brown
  2. 90
  3. 65
  4. 5.8
  5. 7.4
  6. the one nearest an end
  7. 5 %
  8. 440
  9. red-violet-brown
  10. 5
  11. 94
  12. 57
  13. 7
  14. yellow-blue-red
  15. 50000
  16. 540
  17. 14000
  18. 97
  19. 87000
  20. 0
  21. 1
  22. 3
  23. 910
  24. 700
  25. 32
  26. 61
  27. violet-black-orange
  28. 800
  29. 180
  30. 6800
  31. green-white-orange
  32. 45
  33. 9
  34. blue-blue-brown
  35. 5400
  36. 2.6
  37. 720
  38. 70
  39. 590
  40. 6

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