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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 113 · 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 530 Ω resistor? (a) green-orange-black (b) orange-green-brown (c) green-orange-red (d) green-orange-brown
  2. 2.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  8. 8.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) green-blue-black (c) blue-green-black (d) violet-green-black
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) blue-grey-orange (c) blue-grey-red (d) grey-blue-red
  17. 17.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) white-blue-red (c) white-blue-brown (d) blue-white-red
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-red (b) orange-yellow-orange (c) yellow-orange-orange (d) yellow-orange-yellow
  31. 31.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) grey-yellow-orange (b) grey-yellow-brown (c) grey-yellow-red (d) yellow-grey-red
  33. 33.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) blue-red-black (c) violet-red-black (d) red-blue-black
  35. 35.🌈 In the resistor colour code, which number does blue stand for?
  36. 36.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does green stand for?
  39. 39.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. green-orange-brown
  2. 4600
  3. the one nearest an end
  4. 9
  5. 13000
  6. 6200
  7. 5 %
  8. 410
  9. 220
  10. 3000
  11. 240
  12. 5.9
  13. 3
  14. 740
  15. blue-green-black
  16. blue-grey-red
  17. 6300
  18. 78
  19. 7
  20. 500
  21. 120
  22. 2600
  23. white-blue-red
  24. 8
  25. 7.7
  26. 1
  27. 3.7
  28. 10
  29. 34
  30. yellow-orange-orange
  31. 350
  32. grey-yellow-red
  33. 9000
  34. blue-red-black
  35. 6
  36. 1.8
  37. 460
  38. 5
  39. 68
  40. 5.8

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