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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 834 · 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.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does orange stand for?
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) white-violet-black (b) violet-grey-black (c) grey-violet-brown (d) grey-violet-black
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  11. 11.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-black (b) brown-blue-black (c) white-blue-brown (d) blue-white-black
  13. 13.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) white-orange-black (b) orange-grey-black (c) grey-orange-brown (d) grey-orange-black
  16. 16.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-brown (b) orange-brown-orange (c) orange-brown-red (d) brown-orange-red
  20. 20.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-orange (b) green-orange-red (c) orange-green-brown (d) orange-green-red
  22. 22.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) red-blue-black (b) blue-brown-black (c) brown-blue-brown (d) brown-blue-black
  27. 27.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-red (b) green-brown-brown (c) brown-green-red (d) green-brown-orange
  30. 30.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-brown (b) green-blue-black (c) yellow-blue-black (d) blue-yellow-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) red-violet-brown (b) violet-red-brown (c) violet-red-red (d) violet-red-black
  36. 36.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) brown-orange-red (d) brown-orange-orange
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-black (b) green-red-brown (c) red-green-brown (d) green-red-red

Answer key

  1. the one nearest an end
  2. 0
  3. 8
  4. 75
  5. 3
  6. 5
  7. grey-violet-black
  8. 1
  9. 58
  10. 5 %
  11. 19000
  12. white-blue-black
  13. 7.3
  14. 7
  15. grey-orange-black
  16. 57000
  17. 4.8
  18. 270
  19. orange-brown-red
  20. 32000
  21. orange-green-red
  22. 66000
  23. 23000
  24. 7.2
  25. 460
  26. brown-blue-black
  27. 810
  28. 810
  29. green-brown-red
  30. 1200
  31. 9
  32. 4.2
  33. 39000
  34. yellow-blue-black
  35. violet-red-brown
  36. 30000
  37. 7.4
  38. 3.9
  39. brown-orange-red
  40. green-red-brown

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