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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 484 · 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.

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  1. 1.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-red (b) brown-red-brown (c) red-brown-brown (d) brown-red-black
  5. 5.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  7. 7.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) brown-red-black (c) red-brown-black (d) brown-brown-black
  10. 10.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-red (c) orange-blue-brown (d) blue-orange-red
  14. 14.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does violet stand for?
  18. 18.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-violet-black (b) violet-blue-black (c) blue-violet-black (d) blue-violet-brown
  28. 28.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, white, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does green stand for?
  35. 35.🌈 In the resistor colour code, which number does black stand for?
  36. 36.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) blue-brown-yellow (b) blue-brown-orange (c) brown-blue-orange (d) blue-brown-red
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) violet-yellow-black (b) yellow-violet-brown (c) green-violet-black (d) yellow-violet-black
  40. 40.🌈 In the resistor colour code, which number does orange stand for?

Answer key

  1. 7.2
  2. 360
  3. 3.5
  4. brown-red-brown
  5. 25000
  6. the one nearest an end
  7. 82
  8. 20000
  9. brown-brown-black
  10. 2.7
  11. 10000
  12. 620
  13. orange-blue-red
  14. 34
  15. 590
  16. 9900
  17. 7
  18. 6.2
  19. 8
  20. 5 %
  21. 4
  22. 63000
  23. 110
  24. 4.8
  25. 6.8
  26. 800
  27. blue-violet-black
  28. 380
  29. 44
  30. 890
  31. 26000
  32. 490
  33. 1000
  34. 5
  35. 0
  36. 78
  37. 78000
  38. blue-brown-orange
  39. yellow-violet-black
  40. 3

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