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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 816 · 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 white stand for?
  2. 2.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  6. 6.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8900 Ω resistor? (a) white-grey-red (b) grey-white-brown (c) grey-white-orange (d) grey-white-red
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-orange (b) orange-blue-red (c) orange-blue-yellow (d) blue-orange-orange
  28. 28.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 490 Ω resistor? (a) white-yellow-brown (b) yellow-white-red (c) yellow-white-brown (d) yellow-white-black
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-brown (b) blue-blue-black (c) violet-blue-black (d) blue-violet-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-yellow (b) red-brown-orange (c) brown-red-orange (d) brown-red-red
  33. 33.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) yellow-red-orange (b) red-yellow-orange (c) red-yellow-red (d) red-yellow-yellow
  36. 36.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) red-grey-black (b) brown-grey-brown (c) grey-brown-black (d) brown-grey-black
  38. 38.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) orange-grey-black (b) grey-orange-black (c) orange-grey-brown (d) yellow-grey-black
  40. 40.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?

Answer key

  1. 9
  2. 9500
  3. 33000
  4. 5 %
  5. the one nearest an end
  6. 350
  7. 7
  8. grey-white-red
  9. 1
  10. 9800
  11. 39
  12. 3
  13. 200
  14. 530
  15. 36000
  16. 280
  17. 2
  18. 30
  19. 670
  20. 330
  21. 610
  22. 64000
  23. 930
  24. 91
  25. 770
  26. 0
  27. orange-blue-orange
  28. 570
  29. 47
  30. yellow-white-brown
  31. blue-blue-black
  32. brown-red-orange
  33. 8600
  34. 55000
  35. red-yellow-orange
  36. 1.7
  37. brown-grey-black
  38. 65000
  39. orange-grey-black
  40. 1900

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