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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 287 · 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 colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) blue-grey-orange (b) grey-blue-red (c) grey-blue-orange (d) grey-blue-yellow
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) grey-violet-black (b) grey-grey-black (c) violet-grey-brown (d) violet-grey-black
  7. 7.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  15. 15.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) green-red-black (b) yellow-red-brown (c) yellow-red-black (d) red-yellow-black
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) white-orange-brown (c) orange-white-red (d) white-orange-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) grey-violet-orange (b) grey-violet-red (c) violet-grey-red (d) grey-violet-brown
  24. 24.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) blue-orange-red (b) orange-blue-red (c) blue-orange-brown (d) blue-orange-orange
  26. 26.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-red-orange (b) brown-brown-red (c) brown-brown-yellow (d) brown-brown-orange
  28. 28.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-orange (b) blue-green-red (c) blue-green-brown (d) green-blue-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) orange-red-red (c) red-orange-red (d) red-orange-orange
  36. 36.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does red stand for?
  40. 40.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. grey-blue-orange
  2. 5
  3. 3
  4. 70
  5. 9.1
  6. violet-grey-black
  7. 230
  8. 7
  9. the one nearest an end
  10. 6
  11. 3.7
  12. 9
  13. 200
  14. 5 %
  15. 210
  16. 380
  17. 7700
  18. 28000
  19. 1
  20. 800
  21. yellow-red-black
  22. white-orange-red
  23. grey-violet-red
  24. 88000
  25. blue-orange-red
  26. 10
  27. brown-brown-orange
  28. 600
  29. 8700
  30. 930
  31. 84000
  32. 92
  33. 7.1
  34. blue-green-red
  35. red-orange-red
  36. 7.6
  37. 620
  38. 7600
  39. 2
  40. 50

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