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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 26 · 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 grey, green, brown. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  4. 4.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  6. 6.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-red (b) orange-violet-brown (c) violet-orange-black (d) violet-orange-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-brown (b) white-green-red (c) green-white-red (d) green-white-orange
  15. 15.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-brown (b) white-white-red (c) white-black-red (d) white-white-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-red (b) violet-violet-brown (c) violet-grey-brown (d) violet-violet-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) orange-white-red (b) orange-white-orange (c) white-orange-orange (d) orange-white-yellow
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-yellow (b) red-blue-orange (c) red-blue-red (d) blue-red-orange
  21. 21.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-brown (c) brown-yellow-red (d) brown-yellow-black
  25. 25.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) brown-violet-black (c) white-violet-brown (d) white-violet-black
  29. 29.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does blue stand for?
  37. 37.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?

Answer key

  1. 850
  2. 2
  3. the one nearest an end
  4. 910
  5. 5 %
  6. 74
  7. 2800
  8. 180
  9. 2.2
  10. 5
  11. 67
  12. 2.3
  13. violet-orange-brown
  14. green-white-red
  15. 13
  16. white-white-red
  17. violet-violet-brown
  18. orange-white-orange
  19. 7
  20. red-blue-orange
  21. 46
  22. 1
  23. 6900
  24. brown-yellow-brown
  25. 75000
  26. 0
  27. 13
  28. white-violet-black
  29. 4400
  30. 3
  31. 7400
  32. 29000
  33. 37
  34. 990
  35. 4.8
  36. 6
  37. 5.3
  38. 6.2
  39. 49
  40. 460

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