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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 486 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  3. 3.🌈 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
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) brown-grey-red (b) brown-grey-orange (c) brown-grey-yellow (d) grey-brown-orange
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-yellow (b) blue-orange-red (c) orange-blue-orange (d) blue-orange-orange
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) red-yellow-black (c) brown-yellow-brown (d) yellow-brown-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) orange-white-black (b) brown-orange-black (c) white-orange-brown (d) white-orange-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) white-blue-red (c) white-blue-black (d) blue-white-brown
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) blue-orange-black (b) orange-blue-brown (c) yellow-blue-black (d) orange-blue-black
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-brown (b) orange-grey-red (c) grey-orange-red (d) grey-orange-orange
  26. 26.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) white-red-red (b) red-white-orange (c) red-white-red (d) red-white-brown
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does grey stand for?
  33. 33.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-orange (b) violet-brown-yellow (c) violet-brown-red (d) brown-violet-orange
  36. 36.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) orange-violet-black (b) violet-orange-black (c) grey-orange-black (d) violet-orange-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-yellow (b) violet-red-red (c) red-violet-orange (d) violet-red-orange
  39. 39.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4300 Ω resistor? (a) orange-yellow-red (b) yellow-orange-red (c) yellow-orange-brown (d) yellow-orange-orange

Answer key

  1. 5 %
  2. 76
  3. the one nearest an end
  4. brown-grey-orange
  5. blue-orange-orange
  6. brown-yellow-black
  7. white-orange-black
  8. white-blue-brown
  9. 6
  10. orange-blue-black
  11. 7
  12. 76
  13. 21000
  14. 62
  15. 5000
  16. 72000
  17. 2
  18. 81
  19. 920
  20. 28
  21. 280
  22. 83
  23. 8
  24. 2.5
  25. grey-orange-red
  26. 40
  27. 590
  28. red-white-red
  29. 3
  30. 22
  31. 7000
  32. 8
  33. 2100
  34. 170
  35. violet-brown-orange
  36. 410
  37. violet-orange-black
  38. violet-red-orange
  39. 700
  40. yellow-orange-red

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