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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 732 · 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.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  2. 2.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-red (b) violet-orange-brown (c) orange-violet-brown (d) violet-orange-black
  5. 5.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  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 8800 Ω resistor? (a) grey-grey-red (b) grey-white-red (c) grey-grey-brown (d) grey-grey-orange
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-orange (b) green-brown-brown (c) green-brown-red (d) brown-green-red
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-black (b) yellow-green-black (c) orange-green-brown (d) green-orange-black
  14. 14.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) red-green-black (b) brown-green-brown (c) brown-green-black (d) green-brown-black
  19. 19.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) violet-yellow-black (b) blue-yellow-black (c) yellow-blue-black (d) blue-yellow-brown
  22. 22.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) white-grey-black (b) grey-white-black (c) grey-grey-black (d) grey-grey-brown
  28. 28.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-red (b) brown-green-orange (c) brown-green-yellow (d) green-brown-orange
  30. 30.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) grey-yellow-brown (b) yellow-grey-brown (c) yellow-grey-black (d) yellow-grey-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-black (b) yellow-black-red (c) green-yellow-brown (d) yellow-black-brown
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) green-yellow-red (b) yellow-black-red (c) yellow-black-brown (d) yellow-black-orange
  40. 40.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 820
  3. 5 %
  4. violet-orange-brown
  5. 4.5
  6. 75
  7. 9
  8. 1
  9. 48000
  10. 2
  11. grey-grey-red
  12. green-brown-red
  13. orange-green-black
  14. 6.3
  15. 28
  16. 20000
  17. 280
  18. brown-green-black
  19. 2.3
  20. 68
  21. blue-yellow-black
  22. 26000
  23. 950
  24. 3300
  25. 5.2
  26. 34
  27. grey-grey-black
  28. 46
  29. brown-green-orange
  30. 23000
  31. yellow-grey-brown
  32. yellow-black-brown
  33. 5
  34. 29000
  35. 7500
  36. 730
  37. 14
  38. 31
  39. yellow-black-red
  40. 6.9

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