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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 715 · 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) 5 % (b) 50 % (c) 0 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-red (b) red-green-brown (c) green-red-brown (d) red-green-black
  5. 5.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does black stand for?
  8. 8.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-brown (b) orange-orange-red (c) orange-orange-orange (d) orange-yellow-red
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) red-orange-black (b) orange-red-black (c) orange-red-brown (d) yellow-red-black
  18. 18.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-brown (b) grey-red-red (c) red-grey-orange (d) red-grey-red
  23. 23.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) green-blue-brown (b) green-blue-red (c) blue-green-red (d) green-blue-orange
  26. 26.🌈 In the resistor colour code, which number does grey stand for?
  27. 27.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-orange (b) red-blue-red (c) red-blue-yellow (d) blue-red-orange
  31. 31.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does orange stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) white-blue-orange (b) blue-white-orange (c) blue-white-red (d) blue-white-yellow
  34. 34.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-red (b) green-yellow-black (c) yellow-green-brown (d) green-yellow-brown
  37. 37.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does red stand for?
  40. 40.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 94000
  3. the one nearest an end
  4. red-green-brown
  5. 740
  6. 560
  7. 0
  8. 4100
  9. 44
  10. 5
  11. 2900
  12. 400
  13. 8100
  14. orange-orange-red
  15. 6
  16. 83000
  17. orange-red-black
  18. 59
  19. 590
  20. 1200
  21. 3.2
  22. red-grey-red
  23. 39000
  24. 7
  25. green-blue-red
  26. 8
  27. 49000
  28. 4
  29. 9.1
  30. red-blue-orange
  31. 62000
  32. 3
  33. blue-white-orange
  34. 72
  35. 710
  36. green-yellow-brown
  37. 41
  38. 240
  39. 2
  40. 830

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