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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 606 · 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.

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  1. 1.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does grey stand for?
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) red-green-black (b) blue-red-black (c) green-red-brown (d) green-red-black
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-orange (b) red-violet-brown (c) red-violet-red (d) violet-red-red
  15. 15.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 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
  17. 17.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 In the resistor colour code, which number does orange stand for?
  21. 21.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-yellow (b) violet-white-orange (c) white-violet-orange (d) white-violet-red
  24. 24.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-red-brown (c) brown-brown-brown (d) brown-brown-black
  26. 26.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-red (b) grey-brown-red (c) brown-grey-orange (d) brown-grey-brown
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) blue-yellow-red (b) yellow-blue-orange (c) yellow-blue-brown (d) yellow-blue-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) violet-brown-brown (b) grey-brown-black (c) violet-brown-black (d) brown-violet-black
  35. 35.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does red stand for?
  38. 38.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 8.1
  2. 5 %
  3. 8.6
  4. 35000
  5. 8
  6. 1
  7. 9500
  8. 3.9
  9. 44
  10. green-red-black
  11. 7
  12. 930
  13. 16
  14. red-violet-red
  15. 73
  16. the one nearest an end
  17. 200
  18. 47
  19. 6
  20. 3
  21. 2.5
  22. 840
  23. white-violet-orange
  24. 37000
  25. brown-brown-brown
  26. 6300
  27. 75000
  28. 3100
  29. 27
  30. 74
  31. 340
  32. brown-grey-red
  33. yellow-blue-red
  34. violet-brown-black
  35. 49
  36. 79
  37. 2
  38. 20000
  39. 770
  40. 500

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