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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 368 · 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) 5 % (c) 0 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) violet-red-yellow (b) violet-red-orange (c) red-violet-orange (d) violet-red-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) violet-violet-black (c) violet-blue-black (d) blue-violet-black
  9. 9.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-yellow (b) orange-grey-orange (c) grey-orange-orange (d) grey-orange-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) brown-orange-black (d) white-orange-black
  16. 16.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-orange (b) white-brown-red (c) brown-white-red (d) white-brown-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) orange-brown-black (c) orange-brown-brown (d) brown-orange-brown
  23. 23.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) red-white-brown (b) white-red-red (c) white-red-brown (d) white-red-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-orange (b) white-orange-yellow (c) orange-white-orange (d) white-orange-red
  27. 27.🌈 In the resistor colour code, which number does white stand for?
  28. 28.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-red (b) violet-yellow-orange (c) yellow-violet-red (d) violet-yellow-brown
  34. 34.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-red (b) blue-brown-brown (c) brown-blue-brown (d) blue-brown-black
  39. 39.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-orange (b) grey-red-red (c) red-grey-red (d) red-grey-brown

Answer key

  1. 5 %
  2. 130
  3. 64
  4. 7
  5. the one nearest an end
  6. 8
  7. violet-red-orange
  8. blue-violet-black
  9. 60
  10. 5
  11. 27000
  12. 97
  13. 75
  14. grey-orange-orange
  15. white-orange-black
  16. 2500
  17. 150
  18. 2
  19. 1
  20. 30000
  21. white-brown-red
  22. orange-brown-brown
  23. 40000
  24. 2000
  25. white-red-brown
  26. white-orange-orange
  27. 9
  28. 2.3
  29. 78
  30. 82
  31. 0
  32. 80000
  33. violet-yellow-red
  34. 210
  35. 2100
  36. 52
  37. 18000
  38. blue-brown-brown
  39. 940
  40. red-grey-red

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