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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 565 · 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 blue stand for?
  2. 2.🌈 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
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) white-grey-yellow (b) grey-white-orange (c) white-grey-orange (d) white-grey-red
  4. 4.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-orange (b) brown-black-brown (c) brown-black-red (d) red-brown-red
  7. 7.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-orange (b) red-white-brown (c) red-white-red (d) white-red-red
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) red-yellow-red (b) yellow-red-orange (c) yellow-red-red (d) yellow-red-brown
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-red (b) brown-orange-yellow (c) brown-orange-orange (d) orange-brown-orange
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  22. 22.🌈 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
  23. 23.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-brown (b) red-brown-orange (c) red-brown-red (d) brown-red-red
  25. 25.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 6
  2. the one nearest an end
  3. white-grey-orange
  4. 100
  5. 5.6
  6. brown-black-red
  7. 2.1
  8. red-white-red
  9. yellow-red-red
  10. 5 %
  11. 4
  12. brown-orange-orange
  13. 2
  14. 6400
  15. 4.4
  16. 11
  17. 7.1
  18. 7
  19. 2.7
  20. 89
  21. 1100
  22. orange-blue-black
  23. 5.3
  24. red-brown-red
  25. 35
  26. 3
  27. 58
  28. 6.6
  29. 88000
  30. 800
  31. 0
  32. 97
  33. 8
  34. 85000
  35. 80000
  36. 77
  37. 10
  38. 31
  39. 210
  40. 930

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