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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 28 · 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 red stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  3. 3.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) blue-red-black (b) green-red-brown (c) red-green-black (d) green-red-black
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  7. 7.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 In the resistor colour code, which number does yellow stand for?
  16. 16.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-yellow (b) green-green-red (c) green-blue-orange (d) green-green-orange
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-orange (b) brown-green-orange (c) green-brown-red (d) green-brown-yellow
  27. 27.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-violet-brown (b) blue-blue-black (c) blue-blue-red (d) blue-blue-brown
  34. 34.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 2
  2. the one nearest an end
  3. 4
  4. 4300
  5. green-red-black
  6. 5 %
  7. 12
  8. 49
  9. 9
  10. 7
  11. 9.1
  12. 160
  13. 55
  14. 0
  15. 4
  16. 42
  17. 920
  18. 13000
  19. 8
  20. 8800
  21. 110
  22. 8600
  23. 590
  24. 15
  25. green-green-orange
  26. green-brown-orange
  27. 100
  28. 2700
  29. 10000
  30. 5
  31. 99
  32. 39
  33. blue-blue-brown
  34. 46000
  35. 4.3
  36. 3.6
  37. 76
  38. 6
  39. 290
  40. 730

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