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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 93 · 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 red, violet, orange. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does white stand for?
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  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 blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-orange (b) brown-white-orange (c) white-brown-red (d) white-brown-yellow
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-brown (b) green-yellow-red (c) yellow-black-red (d) yellow-black-orange
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) green-grey-black (b) yellow-grey-brown (c) grey-yellow-black (d) yellow-grey-black
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does red stand for?
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-orange (b) grey-orange-brown (c) grey-orange-red (d) orange-grey-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-brown (c) orange-grey-black (d) orange-grey-red
  35. 35.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) white-brown-brown (d) white-brown-red
  38. 38.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 27000
  2. 9
  3. the one nearest an end
  4. 940
  5. 5 %
  6. 41
  7. 6.8
  8. 5
  9. 7
  10. 91000
  11. 6300
  12. 6
  13. 79
  14. 50
  15. 91
  16. 890
  17. 8.3
  18. white-brown-orange
  19. yellow-black-red
  20. yellow-grey-black
  21. 8
  22. 38
  23. 8
  24. 11
  25. 47
  26. 2300
  27. 2
  28. 1
  29. 59000
  30. 1500
  31. 3.5
  32. 4.1
  33. grey-orange-red
  34. orange-grey-brown
  35. 800
  36. 54
  37. white-brown-red
  38. 82
  39. 3400
  40. 5.1

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