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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 326 · 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.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-red (b) orange-brown-brown (c) brown-orange-brown (d) brown-orange-black
  3. 3.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  6. 6.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-yellow (b) yellow-green-orange (c) yellow-yellow-red (d) yellow-yellow-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) red-grey-black (b) grey-red-brown (c) grey-red-black (d) white-red-black
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-black (c) violet-yellow-black (d) blue-yellow-black
  17. 17.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) grey-brown-brown (c) grey-brown-black (d) white-brown-black
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-red (b) red-orange-brown (c) orange-red-brown (d) orange-red-black
  23. 23.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) white-grey-orange (b) grey-white-red (c) grey-white-orange (d) grey-white-yellow
  35. 35.🌈 In the resistor colour code, which number does black stand for?
  36. 36.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) orange-white-orange (c) white-orange-yellow (d) white-orange-orange
  39. 39.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. 400
  2. brown-orange-brown
  3. 1200
  4. 700
  5. 5 %
  6. 33
  7. 5.8
  8. 41000
  9. 9
  10. 7
  11. 3
  12. 4
  13. 1
  14. yellow-yellow-orange
  15. grey-red-black
  16. blue-yellow-black
  17. the one nearest an end
  18. 8
  19. grey-brown-black
  20. 5
  21. 200
  22. orange-red-brown
  23. 4.4
  24. 780
  25. 970
  26. 7.1
  27. 28
  28. 5.1
  29. 440
  30. 84
  31. 68
  32. 30000
  33. 3100
  34. grey-white-orange
  35. 0
  36. 75
  37. 98
  38. white-orange-orange
  39. 45000
  40. 2

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