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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 539 · 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) 25 % (b) 50 % (c) 0 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-orange (b) violet-green-brown (c) green-violet-red (d) violet-green-red
  7. 7.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) red-green-black (b) green-red-brown (c) green-red-black (d) blue-red-black
  9. 9.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does grey stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-red (b) yellow-brown-brown (c) yellow-brown-black (d) brown-yellow-brown
  13. 13.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-orange (b) white-green-orange (c) green-white-red (d) green-white-yellow
  19. 19.🌈 In the resistor colour code, which number does white stand for?
  20. 20.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) red-brown-black (c) brown-red-brown (d) brown-red-black
  27. 27.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  29. 29.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  30. 30.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-brown (b) white-white-black (c) white-black-black (d) brown-white-black
  32. 32.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-red (b) orange-red-black (c) orange-red-brown (d) red-orange-brown
  34. 34.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-red (b) grey-orange-black (c) orange-grey-brown (d) grey-orange-brown
  38. 38.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) brown-orange-brown (c) orange-brown-black (d) red-orange-black
  40. 40.🌈 In the resistor colour code, which number does brown stand for?

Answer key

  1. 5 %
  2. 78000
  3. 5
  4. 70000
  5. 900
  6. violet-green-red
  7. 84000
  8. green-red-black
  9. 29
  10. 87
  11. 8
  12. yellow-brown-brown
  13. 10
  14. 610
  15. 60
  16. 9300
  17. 41
  18. green-white-orange
  19. 9
  20. 560
  21. 630
  22. 99
  23. 1900
  24. 680
  25. 4.2
  26. brown-red-black
  27. 740
  28. 91
  29. the one nearest an end
  30. 27
  31. white-white-black
  32. 90
  33. orange-red-brown
  34. 250
  35. 8
  36. 97000
  37. grey-orange-brown
  38. 120
  39. brown-orange-black
  40. 1

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