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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 153 · 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 orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-black (b) green-orange-black (c) yellow-green-black (d) orange-green-brown
  5. 5.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  7. 7.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-red (b) grey-orange-orange (c) orange-grey-yellow (d) orange-grey-orange
  12. 12.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  13. 13.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-red (b) green-brown-brown (c) green-brown-orange (d) brown-green-red
  15. 15.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) white-violet-red (c) violet-white-red (d) white-violet-orange
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-brown-brown (c) brown-red-brown (d) brown-brown-red
  21. 21.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-brown (b) red-violet-black (c) orange-violet-black (d) violet-red-black
  23. 23.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) grey-black-black (b) white-black-black (c) grey-black-brown (d) white-grey-black
  26. 26.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 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
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-red (b) red-orange-brown (c) red-red-brown (d) red-red-black
  30. 30.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-brown (b) green-blue-brown (c) blue-green-red (d) blue-green-black
  36. 36.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) white-blue-black (c) white-blue-red (d) blue-white-brown
  40. 40.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?

Answer key

  1. 32
  2. 80
  3. 120
  4. orange-green-black
  5. 17000
  6. 5 %
  7. 89
  8. 8
  9. 43
  10. 15
  11. orange-grey-orange
  12. the one nearest an end
  13. 41
  14. green-brown-red
  15. 3200
  16. 5
  17. 6
  18. 21000
  19. white-violet-red
  20. brown-brown-brown
  21. 30
  22. red-violet-black
  23. 81
  24. 5600
  25. grey-black-black
  26. 9.3
  27. 69
  28. green-red-black
  29. red-red-brown
  30. 53
  31. 34
  32. 27
  33. 250
  34. 27000
  35. blue-green-brown
  36. 31
  37. 16
  38. 9
  39. white-blue-brown
  40. 65000

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