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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 659 · 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, violet, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-red (b) orange-green-orange (c) orange-green-brown (d) green-orange-red
  12. 12.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-black (b) red-grey-black (c) white-red-black (d) grey-red-brown
  14. 14.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-black (b) orange-white-black (c) white-red-black (d) red-white-brown
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does blue stand for?
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-orange-brown (b) yellow-orange-black (c) orange-orange-black (d) orange-yellow-black
  27. 27.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-red (b) blue-black-brown (c) violet-blue-brown (d) blue-black-black
  33. 33.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does grey stand for?
  39. 39.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?

Answer key

  1. 8.7
  2. 5 %
  3. the one nearest an end
  4. 370
  5. 9
  6. 0
  7. 110
  8. 1700
  9. 4
  10. 1
  11. orange-green-red
  12. 90
  13. grey-red-black
  14. 8.1
  15. 6.9
  16. 1.4
  17. red-white-black
  18. 7
  19. 5700
  20. 7.4
  21. 59000
  22. 930
  23. 110
  24. 6
  25. 5
  26. orange-orange-black
  27. 170
  28. 35
  29. 98
  30. 3200
  31. 2200
  32. blue-black-brown
  33. 30
  34. 7400
  35. 74000
  36. 440
  37. 750
  38. 8
  39. 70
  40. 23

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