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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 829 · 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.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-red (b) violet-blue-brown (c) violet-blue-black (d) blue-violet-brown
  3. 3.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  9. 9.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does red stand for?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) white-violet-black (b) grey-violet-black (c) violet-grey-black (d) grey-violet-brown
  26. 26.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) yellow-black-red (c) yellow-black-orange (d) green-yellow-orange

Answer key

  1. 250
  2. violet-blue-brown
  3. 75
  4. 3
  5. 510
  6. 5
  7. 89
  8. the one nearest an end
  9. 120
  10. 48000
  11. 5 %
  12. 78
  13. 0
  14. 5.3
  15. 63
  16. 110
  17. 750
  18. 63
  19. 380
  20. 2
  21. 6
  22. 1
  23. 79
  24. 930
  25. grey-violet-black
  26. 900
  27. 80
  28. 6000
  29. 2100
  30. 82
  31. 82000
  32. 47
  33. 3.3
  34. 52
  35. 10
  36. 6100
  37. 75
  38. 4000
  39. 5.4
  40. yellow-black-orange

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