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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 953 · 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 green, orange, brown. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  3. 3.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) brown-blue-yellow (c) blue-brown-orange (d) brown-blue-red
  5. 5.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) orange-yellow-orange (c) yellow-orange-orange (d) yellow-orange-red
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-black (c) green-grey-black (d) yellow-grey-black
  10. 10.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) blue-red-brown (b) red-blue-black (c) red-blue-red (d) red-blue-brown
  12. 12.🌈 In the resistor colour code, which number does green stand for?
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-black-black (b) white-white-black (c) white-white-brown (d) brown-white-black
  15. 15.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) green-red-black (b) red-green-brown (c) red-green-black (d) orange-green-black
  21. 21.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) brown-white-yellow (d) brown-white-orange
  30. 30.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-brown (b) brown-red-black (c) red-brown-brown (d) brown-red-red
  34. 34.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?

Answer key

  1. 530
  2. the one nearest an end
  3. 700
  4. brown-blue-orange
  5. 8.9
  6. 5 %
  7. 7
  8. yellow-orange-orange
  9. yellow-grey-black
  10. 370
  11. red-blue-brown
  12. 5
  13. 1
  14. white-white-black
  15. 92
  16. 6
  17. 75
  18. 500
  19. 7000
  20. red-green-black
  21. 87
  22. 7
  23. 31
  24. 3
  25. 850
  26. 50
  27. 72
  28. 2
  29. brown-white-orange
  30. 640
  31. 7.1
  32. 7.3
  33. brown-red-brown
  34. 590
  35. 33
  36. 21
  37. 8
  38. 9
  39. 6100
  40. 47

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