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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 891 · 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 white, black, red. 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) 0 % (c) 5 % (d) 25 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) yellow-orange-black (b) orange-orange-brown (c) orange-yellow-black (d) orange-orange-black
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-red (b) yellow-grey-black (c) grey-yellow-brown (d) yellow-grey-brown
  7. 7.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-black-black (b) white-black-black (c) white-black-brown (d) brown-white-black
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) yellow-grey-orange (c) grey-yellow-orange (d) grey-yellow-yellow
  14. 14.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  16. 16.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-yellow (b) violet-blue-orange (c) blue-violet-red (d) blue-violet-orange
  20. 20.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-yellow (b) green-orange-orange (c) orange-green-orange (d) orange-green-red
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-yellow (b) brown-blue-orange (c) blue-brown-orange (d) brown-blue-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-orange (b) blue-black-yellow (c) blue-black-red (d) violet-blue-orange
  26. 26.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does violet stand for?
  29. 29.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) green-yellow-black (b) yellow-green-black (c) green-yellow-brown (d) blue-yellow-black
  31. 31.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) blue-violet-orange (b) violet-blue-orange (c) violet-blue-yellow (d) violet-blue-red
  33. 33.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-yellow (b) red-blue-orange (c) red-blue-red (d) blue-red-orange
  37. 37.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 9000
  2. 5 %
  3. orange-orange-black
  4. 4
  5. 960
  6. yellow-grey-brown
  7. 4.4
  8. 3.9
  9. white-black-black
  10. 8
  11. 31
  12. 9
  13. grey-yellow-orange
  14. 1.8
  15. the one nearest an end
  16. 23000
  17. 29
  18. 900
  19. blue-violet-orange
  20. 37000
  21. 6
  22. 530
  23. orange-green-orange
  24. brown-blue-orange
  25. blue-black-orange
  26. 300
  27. 3.1
  28. 7
  29. 1.7
  30. green-yellow-black
  31. 150
  32. violet-blue-orange
  33. 880
  34. 4.1
  35. 27
  36. red-blue-orange
  37. 5.1
  38. 20000
  39. 72
  40. 100

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