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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 496 · 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) 0 % (b) 5 % (c) 50 % (d) 25 %
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-black (b) brown-white-red (c) brown-white-brown (d) white-brown-brown
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-orange (c) brown-black-red (d) brown-black-brown
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-yellow (c) brown-green-orange (d) brown-green-red
  12. 12.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-black-black (b) yellow-orange-black (c) orange-black-black (d) orange-black-brown
  15. 15.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) yellow-red-black (b) red-orange-black (c) orange-red-brown (d) orange-red-black
  17. 17.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) red-blue-black (c) violet-red-black (d) blue-red-black
  19. 19.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) violet-white-black (c) violet-white-brown (d) white-violet-black
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) green-brown-red (b) brown-green-orange (c) brown-green-brown (d) brown-green-red
  23. 23.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 In the resistor colour code, which number does brown stand for?
  28. 28.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) green-orange-red (b) orange-green-red (c) orange-green-orange (d) orange-green-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-brown (b) brown-red-red (c) red-brown-red (d) brown-red-orange
  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 white, brown, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) yellow-green-brown (c) green-green-black (d) green-yellow-black
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. 8
  4. 4
  5. 1400
  6. 91
  7. 230
  8. brown-white-brown
  9. 2
  10. brown-black-red
  11. brown-green-orange
  12. 1000
  13. 0
  14. orange-black-black
  15. 9.7
  16. orange-red-black
  17. 7700
  18. blue-red-black
  19. 35000
  20. violet-white-black
  21. 6
  22. brown-green-red
  23. 6500
  24. 310
  25. 5.8
  26. 5
  27. 1
  28. 2800
  29. 32
  30. orange-green-red
  31. brown-red-red
  32. 92
  33. 9.1
  34. 3.9
  35. 230
  36. 7.9
  37. yellow-green-black
  38. 9
  39. 80
  40. 16000

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