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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 189 · 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, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  3. 3.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) white-violet-black (b) grey-violet-black (c) violet-grey-black (d) grey-violet-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) white-brown-red (b) brown-white-brown (c) brown-white-red (d) brown-white-orange
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-red (b) red-brown-brown (c) brown-red-brown (d) red-brown-black
  14. 14.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  17. 17.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does grey stand for?
  29. 29.🌈 In the resistor colour code, which number does brown stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) green-yellow-black (b) blue-yellow-black (c) green-yellow-brown (d) yellow-green-black
  31. 31.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-black (b) orange-yellow-brown (c) orange-orange-red (d) orange-orange-brown
  35. 35.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) grey-brown-red (b) brown-grey-brown (c) brown-grey-orange (d) brown-grey-red
  37. 37.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 84
  2. the one nearest an end
  3. 570
  4. 900
  5. 310
  6. 53000
  7. 2.8
  8. 3
  9. 71
  10. 2
  11. grey-violet-black
  12. brown-white-red
  13. red-brown-brown
  14. 500
  15. 4.1
  16. 5 %
  17. 530
  18. 9.2
  19. 24
  20. 8.9
  21. 970
  22. 48
  23. 430
  24. 89000
  25. 34
  26. 5
  27. 3700
  28. 8
  29. 1
  30. green-yellow-black
  31. 130
  32. 770
  33. 0
  34. orange-orange-brown
  35. 43
  36. brown-grey-red
  37. 97000
  38. 2.6
  39. 6.1
  40. 560

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