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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 982 · 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 gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  4. 4.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) green-yellow-orange (b) yellow-black-red (c) yellow-black-orange (d) yellow-black-yellow
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 950 Ω resistor? (a) green-white-brown (b) white-green-red (c) white-green-black (d) white-green-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) yellow-violet-red (b) violet-yellow-red (c) violet-yellow-orange (d) violet-yellow-brown
  9. 9.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-orange (b) green-violet-red (c) violet-green-red (d) violet-green-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) green-red-black (b) orange-green-black (c) red-green-black (d) red-green-brown
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-red (b) orange-yellow-yellow (c) orange-yellow-orange (d) yellow-orange-orange
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) green-blue-black (b) blue-green-black (c) blue-blue-black (d) green-blue-brown
  15. 15.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  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 grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-violet-black (b) violet-blue-black (c) blue-violet-brown (d) blue-violet-black
  39. 39.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 1
  3. the one nearest an end
  4. 44
  5. yellow-black-orange
  6. 0
  7. white-green-brown
  8. violet-yellow-red
  9. 5800
  10. 3
  11. violet-green-red
  12. red-green-black
  13. orange-yellow-orange
  14. green-blue-black
  15. 2700
  16. 46
  17. 37
  18. 270
  19. 41000
  20. 1.4
  21. 87
  22. 8900
  23. 290
  24. 8
  25. 40000
  26. 840
  27. 1200
  28. 600
  29. 52000
  30. 9
  31. 8.9
  32. 66
  33. 26
  34. 52
  35. 8.7
  36. 350
  37. 21
  38. blue-violet-black
  39. 34000
  40. 9.1

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