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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 789 · 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.🌈 In the resistor colour code, which number does violet stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) brown-violet-red (b) violet-brown-brown (c) violet-brown-red (d) violet-brown-orange
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  6. 6.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-black (b) violet-red-black (c) red-violet-brown (d) orange-violet-black
  22. 22.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-orange (b) yellow-orange-red (c) yellow-orange-yellow (d) orange-yellow-orange
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-orange-black (b) orange-orange-brown (c) orange-yellow-black (d) yellow-orange-black
  30. 30.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-brown (b) blue-blue-red (c) blue-blue-orange (d) blue-violet-red
  34. 34.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-brown (b) brown-black-red (c) brown-black-black (d) red-brown-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-brown (b) brown-orange-red (c) orange-brown-red (d) brown-orange-orange
  38. 38.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?

Answer key

  1. 7
  2. violet-brown-red
  3. 1
  4. 0
  5. the one nearest an end
  6. 160
  7. 38000
  8. 61
  9. 87000
  10. 5 %
  11. 6
  12. 80000
  13. 3
  14. 8
  15. 1.1
  16. 57
  17. 32
  18. 11
  19. 3
  20. 4.3
  21. red-violet-black
  22. 9
  23. 2
  24. 33
  25. 460
  26. 300
  27. 540
  28. yellow-orange-orange
  29. orange-orange-black
  30. 38
  31. 75000
  32. 8.2
  33. blue-blue-red
  34. 720
  35. 1
  36. brown-black-brown
  37. brown-orange-red
  38. 92
  39. 410
  40. 850

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