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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 665 · 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.🌈 In the resistor colour code, which number does white stand for?
  2. 2.🌈 In the resistor colour code, which number does violet stand for?
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  4. 4.🌈 A resistor has the colour bands green, orange, red. 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) 25 % (b) 0 % (c) 5 % (d) 50 %
  6. 6.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-brown (b) blue-brown-red (c) brown-blue-orange (d) brown-blue-red
  11. 11.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-orange (b) violet-blue-red (c) blue-violet-red (d) blue-violet-brown
  14. 14.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) brown-green-orange (b) green-brown-red (c) green-brown-orange (d) green-brown-yellow
  16. 16.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-red (b) red-black-black (c) red-black-brown (d) orange-red-brown
  18. 18.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-brown (b) grey-orange-red (c) grey-orange-black (d) orange-grey-brown
  21. 21.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-yellow (b) grey-white-red (c) white-grey-orange (d) grey-white-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-black (b) orange-brown-brown (c) brown-orange-red (d) brown-orange-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-violet-black (b) grey-violet-black (c) violet-violet-brown (d) violet-grey-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) violet-blue-brown (d) blue-black-red
  26. 26.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does yellow stand for?
  28. 28.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does brown stand for?
  31. 31.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) red-white-orange (b) white-red-yellow (c) white-red-red (d) white-red-orange
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-black (b) red-white-red (c) red-white-brown (d) white-red-brown
  35. 35.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does red stand for?
  39. 39.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) orange-red-black (b) red-red-black (c) red-orange-black (d) red-red-brown

Answer key

  1. 9
  2. 7
  3. the one nearest an end
  4. 5.3
  5. 5 %
  6. 100
  7. 6
  8. 8
  9. 5
  10. brown-blue-red
  11. 1100
  12. 92
  13. blue-violet-red
  14. 56000
  15. green-brown-orange
  16. 720
  17. red-black-brown
  18. 80
  19. 4.6
  20. grey-orange-brown
  21. 280
  22. grey-white-orange
  23. brown-orange-brown
  24. violet-violet-black
  25. blue-black-brown
  26. 36000
  27. 4
  28. 5200
  29. 14
  30. 1
  31. 900
  32. 3900
  33. white-red-orange
  34. red-white-brown
  35. 370
  36. 680
  37. 78
  38. 2
  39. 63000
  40. red-red-black

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