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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 341 · 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 yellow, red, orange. What is its value (in ohms)?
  2. 2.🌈 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
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  4. 4.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-brown (b) violet-black-black (c) violet-blue-black (d) blue-black-black
  11. 11.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) green-grey-black (c) blue-grey-black (d) grey-green-black
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-red (b) white-grey-orange (c) grey-white-red (d) white-grey-brown
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-brown (c) red-black-black (d) red-black-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-orange (b) green-white-brown (c) white-green-red (d) green-white-red
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-red (b) brown-black-black (c) red-brown-brown (d) brown-black-brown
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-black (b) grey-red-red (c) red-grey-brown (d) grey-red-brown
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-red-black (b) red-orange-brown (c) orange-orange-black (d) red-orange-black
  28. 28.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does black stand for?
  35. 35.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-red (b) red-white-brown (c) white-red-brown (d) red-white-black
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-orange (b) grey-violet-orange (c) violet-grey-red (d) violet-grey-yellow
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-orange (b) blue-white-red (c) white-blue-orange (d) blue-white-yellow

Answer key

  1. 42000
  2. the one nearest an end
  3. 5 %
  4. 960
  5. 34
  6. 66
  7. 7
  8. 7600
  9. 1.6
  10. blue-black-black
  11. 86
  12. green-grey-black
  13. 1
  14. 2.2
  15. white-grey-red
  16. 3
  17. 65
  18. 230
  19. red-black-brown
  20. green-white-red
  21. 5
  22. brown-black-brown
  23. 6
  24. 49000
  25. grey-red-brown
  26. 4
  27. red-orange-black
  28. 3000
  29. 4.2
  30. 790
  31. 57
  32. 660
  33. 14
  34. 0
  35. 9.3
  36. 24
  37. 6300
  38. red-white-brown
  39. violet-grey-orange
  40. blue-white-orange

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