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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 960 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) white-orange-black (c) yellow-white-black (d) orange-white-black
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-orange (b) yellow-yellow-red (c) yellow-green-orange (d) yellow-yellow-yellow
  5. 5.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does yellow stand for?
  20. 20.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does green stand for?
  23. 23.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) blue-orange-black (c) orange-blue-black (d) orange-blue-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-red (b) white-green-yellow (c) white-green-orange (d) green-white-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) orange-white-red (b) white-orange-orange (c) white-orange-brown (d) white-orange-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) yellow-blue-black (b) violet-yellow-black (c) blue-yellow-black (d) blue-yellow-brown
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-red (b) blue-green-brown (c) blue-green-orange (d) green-blue-red
  30. 30.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) brown-violet-red (b) violet-brown-brown (c) violet-brown-orange (d) violet-brown-red
  33. 33.🌈 In the resistor colour code, which number does orange stand for?
  34. 34.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  35. 35.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) yellow-yellow-black (d) yellow-yellow-brown
  37. 37.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 0
  2. orange-white-black
  3. 5 %
  4. yellow-yellow-orange
  5. 81000
  6. 44
  7. 4100
  8. 9700
  9. 830
  10. 220
  11. 550
  12. 6300
  13. 95
  14. 950
  15. 2
  16. 160
  17. 85
  18. 83
  19. 4
  20. 68000
  21. 5800
  22. 5
  23. 82
  24. 7
  25. orange-blue-black
  26. white-green-orange
  27. white-orange-red
  28. blue-yellow-black
  29. blue-green-red
  30. 3.4
  31. 3.3
  32. violet-brown-red
  33. 3
  34. 60
  35. the one nearest an end
  36. yellow-yellow-black
  37. 12
  38. 370
  39. 8
  40. 99

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