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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 236 · 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 band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  2. 2.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) green-yellow-black (b) yellow-yellow-black (c) yellow-green-black (d) yellow-yellow-brown
  5. 5.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  8. 8.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-yellow (b) blue-violet-red (c) violet-blue-orange (d) blue-violet-orange
  14. 14.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-red (b) red-green-black (c) red-green-brown (d) green-red-brown
  16. 16.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-red-orange (b) brown-brown-orange (c) brown-brown-yellow (d) brown-brown-red
  19. 19.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does blue stand for?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does black stand for?
  24. 24.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) red-green-brown (b) red-green-black (c) green-red-black (d) orange-green-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) orange-red-red (b) red-orange-brown (c) red-orange-orange (d) red-orange-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-brown (b) green-grey-orange (c) green-grey-red (d) grey-green-red
  31. 31.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) violet-brown-brown (b) brown-violet-red (c) brown-violet-brown (d) brown-violet-black
  34. 34.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-black (b) violet-white-brown (c) white-violet-brown (d) white-violet-red
  36. 36.🌈 In the resistor colour code, which number does violet stand for?
  37. 37.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-red (b) blue-violet-orange (c) blue-violet-brown (d) violet-blue-red

Answer key

  1. the one nearest an end
  2. 41
  3. 33
  4. yellow-yellow-black
  5. 39
  6. 4
  7. 5 %
  8. 32
  9. 3.4
  10. 8
  11. 56000
  12. 51
  13. blue-violet-orange
  14. 420
  15. red-green-brown
  16. 450
  17. 5
  18. brown-brown-orange
  19. 830
  20. 6
  21. 1
  22. 88
  23. 0
  24. 8.7
  25. 21
  26. 20000
  27. 69
  28. red-green-black
  29. red-orange-red
  30. green-grey-red
  31. 8000
  32. 7600
  33. brown-violet-brown
  34. 80000
  35. white-violet-brown
  36. 7
  37. 10
  38. 790
  39. 3.8
  40. blue-violet-red

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