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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 848 · 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) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) brown-blue-red (c) brown-blue-yellow (d) blue-brown-orange
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does yellow stand for?
  18. 18.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-black (b) yellow-black-black (c) orange-black-brown (d) yellow-orange-black
  20. 20.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) red-orange-black (c) orange-brown-black (d) brown-orange-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-black (b) green-red-brown (c) blue-red-black (d) red-green-black
  23. 23.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) green-brown-black (b) brown-yellow-black (c) yellow-brown-black (d) yellow-brown-brown
  26. 26.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-orange (c) grey-black-brown (d) grey-black-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-orange (b) white-violet-red (c) violet-white-brown (d) violet-white-red
  29. 29.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-brown (b) brown-red-black (c) white-red-black (d) red-white-black
  32. 32.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) orange-brown-black (c) orange-brown-brown (d) brown-orange-brown
  36. 36.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-orange (c) yellow-orange-orange (d) orange-black-yellow
  39. 39.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 6
  3. 88
  4. 790
  5. 5
  6. 8
  7. 5 %
  8. 2
  9. 9.9
  10. brown-blue-orange
  11. 0
  12. 1
  13. 48
  14. 830
  15. 820
  16. 230
  17. 4
  18. 15000
  19. orange-black-black
  20. 55
  21. brown-orange-black
  22. green-red-black
  23. 76
  24. 1.1
  25. yellow-brown-black
  26. 3700
  27. grey-black-red
  28. violet-white-red
  29. 69
  30. 89
  31. white-red-black
  32. 530
  33. 9300
  34. 820
  35. orange-brown-brown
  36. 39
  37. 72000
  38. orange-black-orange
  39. 2
  40. 7.4

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