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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 360 · 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 brown, blue, black. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-orange (b) yellow-red-red (c) red-yellow-brown (d) red-yellow-red
  3. 3.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  6. 6.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-brown (c) yellow-violet-red (d) yellow-violet-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-red (b) green-red-orange (c) red-green-orange (d) green-red-yellow
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does grey stand for?
  18. 18.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-black (b) green-red-brown (c) blue-red-black (d) red-green-black
  22. 22.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-red (b) blue-white-brown (c) white-blue-brown (d) blue-white-black
  25. 25.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-red (b) blue-white-brown (c) blue-white-orange (d) white-blue-red
  32. 32.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) blue-brown-orange (b) brown-blue-red (c) brown-blue-yellow (d) brown-blue-orange
  38. 38.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 16
  2. red-yellow-red
  3. 700
  4. 90
  5. 5 %
  6. 1.2
  7. the one nearest an end
  8. 1
  9. 980
  10. 9.9
  11. 870
  12. yellow-violet-brown
  13. green-red-orange
  14. 3
  15. 9
  16. 140
  17. 8
  18. 5.1
  19. 2
  20. 940
  21. green-red-black
  22. 27000
  23. 70
  24. blue-white-brown
  25. 460
  26. 740
  27. 130
  28. 7.8
  29. 3300
  30. 1400
  31. blue-white-red
  32. 550
  33. 630
  34. 18
  35. 350
  36. 39000
  37. brown-blue-orange
  38. 6700
  39. 5
  40. 76

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