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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 703 · 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, grey, black. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-orange (c) yellow-grey-orange (d) grey-yellow-yellow
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) brown-green-black (b) green-brown-black (c) green-brown-brown (d) blue-brown-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) orange-grey-brown (b) grey-orange-black (c) yellow-grey-black (d) orange-grey-black
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  7. 7.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-red (b) grey-violet-brown (c) violet-black-black (d) violet-black-brown
  10. 10.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-yellow (b) blue-violet-orange (c) violet-blue-orange (d) blue-violet-red
  18. 18.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) red-yellow-red (b) red-yellow-brown (c) red-yellow-black (d) yellow-red-brown
  24. 24.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-red (b) brown-red-orange (c) brown-red-brown (d) red-brown-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) green-blue-brown (b) blue-green-brown (c) blue-green-red (d) blue-green-black
  28. 28.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-brown (b) green-yellow-orange (c) green-yellow-red (d) yellow-green-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-orange (b) blue-blue-yellow (c) blue-violet-orange (d) blue-blue-red
  32. 32.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-orange (b) white-blue-red (c) blue-white-orange (d) white-blue-yellow
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-black (b) green-blue-brown (c) green-green-red (d) green-green-brown
  38. 38.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-brown (b) green-white-black (c) green-white-red (d) white-green-brown
  40. 40.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?

Answer key

  1. 48
  2. grey-yellow-orange
  3. the one nearest an end
  4. green-brown-black
  5. orange-grey-black
  6. 5 %
  7. 82
  8. 3.7
  9. violet-black-brown
  10. 310
  11. 6800
  12. 27000
  13. 3000
  14. 400
  15. 51000
  16. 20
  17. blue-violet-orange
  18. 10000
  19. 170
  20. 50000
  21. 9.9
  22. 62000
  23. red-yellow-brown
  24. 460
  25. 3300
  26. brown-red-red
  27. blue-green-brown
  28. 19
  29. 3
  30. green-yellow-red
  31. blue-blue-orange
  32. 69
  33. 6
  34. 830
  35. 340
  36. white-blue-orange
  37. green-green-brown
  38. 29000
  39. green-white-brown
  40. 71

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