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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 574 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-yellow (b) white-yellow-orange (c) white-yellow-red (d) yellow-white-orange
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-black (b) red-grey-black (c) white-red-black (d) grey-red-brown
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  5. 5.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-yellow (b) green-black-red (c) green-black-orange (d) blue-green-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) white-grey-black (b) grey-black-black (c) grey-black-brown (d) white-black-black
  19. 19.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) green-orange-black (c) green-orange-brown (d) blue-orange-black
  21. 21.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does violet stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) red-green-brown (b) red-green-black (c) orange-green-black (d) green-red-black
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) yellow-orange-brown (b) yellow-orange-red (c) yellow-orange-black (d) orange-yellow-brown
  31. 31.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does black stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) orange-red-red (b) red-black-orange (c) red-black-brown (d) red-black-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4800 Ω resistor? (a) yellow-grey-brown (b) yellow-grey-orange (c) yellow-grey-red (d) grey-yellow-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) white-yellow-orange (b) yellow-white-orange (c) yellow-white-yellow (d) yellow-white-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) grey-violet-orange (b) violet-black-yellow (c) violet-black-red (d) violet-black-orange
  37. 37.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) blue-brown-orange (b) brown-blue-red (c) brown-blue-yellow (d) brown-blue-orange
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) orange-red-orange (b) red-black-red (c) red-black-yellow (d) red-black-orange

Answer key

  1. 5 %
  2. white-yellow-orange
  3. grey-red-black
  4. the one nearest an end
  5. 99000
  6. 6.8
  7. 15
  8. 1.4
  9. 42
  10. 87
  11. 64
  12. 4.3
  13. 1
  14. 8
  15. 3
  16. 71
  17. green-black-orange
  18. grey-black-black
  19. 520
  20. green-orange-black
  21. 840
  22. 72000
  23. 83000
  24. 4
  25. 3.9
  26. 8.5
  27. 75
  28. 7
  29. red-green-black
  30. yellow-orange-brown
  31. 41000
  32. 0
  33. red-black-red
  34. yellow-grey-red
  35. yellow-white-orange
  36. violet-black-orange
  37. 76
  38. 84
  39. brown-blue-orange
  40. red-black-orange

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