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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 998 · 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.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) orange-yellow-black (b) yellow-red-black (c) red-yellow-black (d) red-yellow-brown
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  4. 4.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) white-blue-black (b) violet-white-black (c) blue-white-brown (d) blue-white-black
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) brown-orange-brown (c) red-orange-black (d) orange-brown-black
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does white stand for?
  21. 21.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-yellow (b) red-yellow-orange (c) red-yellow-red (d) yellow-red-orange
  27. 27.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does violet stand for?
  37. 37.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-red (b) white-brown-brown (c) brown-white-red (d) white-brown-orange
  39. 39.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. red-yellow-black
  3. 5 %
  4. 550
  5. 40
  6. 5
  7. blue-white-black
  8. 0
  9. 2.6
  10. 63
  11. 80000
  12. 590
  13. 1
  14. 2
  15. 59
  16. 27
  17. brown-orange-black
  18. 4
  19. 49
  20. 9
  21. 2100
  22. 42
  23. 82
  24. 5.9
  25. 17
  26. red-yellow-orange
  27. 490
  28. 30
  29. 8.1
  30. 160
  31. 93000
  32. 28
  33. 8
  34. 5.7
  35. 280
  36. 7
  37. 74000
  38. white-brown-red
  39. 79000
  40. 33000

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