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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 231 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) green-blue-black (b) blue-green-brown (c) violet-green-black (d) blue-green-black
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-black (b) grey-brown-black (c) red-grey-black (d) brown-grey-brown
  16. 16.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) brown-yellow-red (b) brown-yellow-orange (c) brown-yellow-brown (d) yellow-brown-red
  18. 18.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  19. 19.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) violet-blue-red (b) blue-violet-orange (c) blue-violet-brown (d) blue-violet-red
  22. 22.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-orange (b) violet-orange-red (c) violet-orange-yellow (d) orange-violet-orange
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) orange-red-brown (b) red-orange-black (c) red-orange-brown (d) red-orange-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) yellow-orange-red (c) yellow-orange-orange (d) orange-yellow-orange
  28. 28.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does white stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) yellow-red-brown (b) red-yellow-black (c) green-red-black (d) yellow-red-black
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-brown (b) red-red-red (c) red-orange-red (d) red-red-orange
  32. 32.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?

Answer key

  1. 0
  2. 5 %
  3. 42
  4. 180
  5. blue-green-black
  6. 5
  7. 2500
  8. 2.1
  9. 2
  10. 58
  11. 1
  12. 87
  13. 7
  14. 62000
  15. brown-grey-black
  16. 130
  17. brown-yellow-red
  18. the one nearest an end
  19. 8600
  20. 900
  21. blue-violet-red
  22. 29
  23. violet-orange-orange
  24. 4
  25. 56
  26. red-orange-brown
  27. yellow-orange-orange
  28. 4300
  29. 9
  30. yellow-red-black
  31. red-red-red
  32. 8100
  33. 20
  34. 7.2
  35. 76
  36. 8.6
  37. 970
  38. 3.6
  39. 6.2
  40. 480

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