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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 377 · 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, green, red. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 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
  6. 6.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-yellow (b) violet-blue-orange (c) blue-violet-red (d) blue-violet-orange
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) orange-grey-brown (b) orange-grey-black (c) grey-orange-black (d) yellow-grey-black
  13. 13.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-orange (b) white-yellow-red (c) white-yellow-yellow (d) yellow-white-orange
  21. 21.🌈 In the resistor colour code, which number does red stand for?
  22. 22.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does violet stand for?
  24. 24.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-brown (b) white-green-orange (c) green-white-red (d) white-green-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) brown-orange-brown (b) orange-brown-red (c) orange-brown-brown (d) orange-brown-black
  35. 35.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) violet-blue-brown (b) blue-black-red (c) blue-black-black (d) blue-black-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-brown (c) grey-yellow-black (d) grey-yellow-red
  39. 39.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) red-grey-black (b) brown-grey-brown (c) grey-brown-black (d) brown-grey-black

Answer key

  1. 4500
  2. 5 %
  3. 280
  4. 8
  5. the one nearest an end
  6. 41
  7. 1.9
  8. 6700
  9. 5.8
  10. blue-violet-orange
  11. 3
  12. orange-grey-black
  13. 13
  14. 400
  15. 5
  16. 30
  17. 5.7
  18. 28000
  19. 6
  20. white-yellow-orange
  21. 2
  22. 2.2
  23. 7
  24. 850
  25. 54000
  26. 540
  27. 990
  28. 1
  29. 780
  30. 6.6
  31. 72
  32. 260
  33. white-green-red
  34. orange-brown-brown
  35. 42
  36. 160
  37. blue-black-brown
  38. grey-yellow-brown
  39. 37000
  40. brown-grey-black

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