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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 331 · 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 a 690 Ω resistor? (a) white-blue-brown (b) blue-white-brown (c) blue-white-red (d) blue-white-black
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) orange-red-red (c) red-orange-orange (d) orange-red-orange
  3. 3.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 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
  6. 6.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  8. 8.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) yellow-green-brown (b) green-yellow-red (c) green-yellow-brown (d) green-yellow-black
  10. 10.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) blue-yellow-black (d) green-yellow-brown
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands red, green, orange. 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-yellow (b) red-brown-orange (c) brown-black-orange (d) brown-black-red
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-orange (b) brown-blue-red (c) brown-blue-brown (d) blue-brown-red
  24. 24.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) orange-brown-brown (c) yellow-brown-black (d) orange-brown-black
  31. 31.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does grey stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75000 Ω resistor? (a) violet-green-red (b) violet-green-yellow (c) violet-green-orange (d) green-violet-orange
  38. 38.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. blue-white-brown
  2. orange-red-orange
  3. 43
  4. 2
  5. the one nearest an end
  6. 690
  7. 5 %
  8. 44
  9. green-yellow-brown
  10. 100
  11. 9800
  12. 2.2
  13. green-yellow-black
  14. 1
  15. 6
  16. 25
  17. 7700
  18. brown-black-orange
  19. 7
  20. 34000
  21. 4
  22. 280
  23. brown-blue-red
  24. 29
  25. 830
  26. 1.1
  27. 27
  28. 2100
  29. 54
  30. orange-brown-black
  31. 650
  32. 19000
  33. 0
  34. 3.5
  35. 490
  36. 8
  37. violet-green-orange
  38. 40000
  39. 740
  40. 2.8

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