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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 509 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  2. 2.🌈 In the resistor colour code, which number does orange stand for?
  3. 3.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) brown-yellow-black (c) yellow-brown-brown (d) green-brown-black
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  12. 12.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-red (b) green-black-yellow (c) blue-green-orange (d) green-black-orange
  20. 20.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-orange (b) violet-blue-red (c) blue-black-brown (d) blue-black-red
  23. 23.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-yellow (b) yellow-blue-red (c) yellow-blue-orange (d) blue-yellow-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) red-brown-orange (b) brown-red-yellow (c) brown-red-red (d) brown-red-orange
  28. 28.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-brown (b) white-green-orange (c) white-green-red (d) green-white-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-brown-red (d) red-brown-brown
  31. 31.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does grey stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-black-black (b) brown-white-black (c) white-white-black (d) white-white-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-black (b) grey-violet-brown (c) violet-black-red (d) violet-black-brown

Answer key

  1. 5 %
  2. 3
  3. 93
  4. 9
  5. 5
  6. 77
  7. 1
  8. 21
  9. 4.1
  10. yellow-brown-black
  11. the one nearest an end
  12. 26
  13. 370
  14. 65
  15. 68
  16. 6
  17. 160
  18. 21
  19. green-black-orange
  20. 52
  21. 26
  22. blue-black-red
  23. 47
  24. 2
  25. 7
  26. yellow-blue-orange
  27. brown-red-orange
  28. 210
  29. white-green-red
  30. red-brown-brown
  31. 2600
  32. 6
  33. 6.8
  34. 11000
  35. 450
  36. 220
  37. 40
  38. 8
  39. white-white-black
  40. violet-black-brown

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