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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 339 · 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 grey, white, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 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
  5. 5.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-orange (b) blue-black-red (c) violet-blue-orange (d) blue-black-yellow
  8. 8.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-yellow (c) grey-orange-orange (d) grey-orange-red
  13. 13.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-black (b) blue-white-black (c) green-white-brown (d) white-green-black
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does grey stand for?
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-black (b) violet-blue-red (c) violet-blue-brown (d) blue-violet-brown
  26. 26.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-black-red (b) white-white-orange (c) white-white-red (d) white-white-brown
  28. 28.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-red (b) grey-orange-black (c) grey-orange-brown (d) orange-grey-brown

Answer key

  1. 89
  2. 5 %
  3. 26
  4. the one nearest an end
  5. 660
  6. 31
  7. blue-black-orange
  8. 92000
  9. 50000
  10. 34
  11. 6
  12. grey-orange-orange
  13. 200
  14. 8500
  15. green-white-black
  16. 5
  17. 7.3
  18. 15
  19. 5.6
  20. 8
  21. 7
  22. 54
  23. 43
  24. 56
  25. violet-blue-brown
  26. 9100
  27. white-white-red
  28. 590
  29. 510
  30. 76000
  31. 85
  32. 2500
  33. 95
  34. 11000
  35. 8.6
  36. 12000
  37. 7.4
  38. 7700
  39. 930
  40. grey-orange-brown

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