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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 901 · 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 green stand for?
  2. 2.🌈 In the resistor colour code, which number does orange stand for?
  3. 3.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does red stand for?
  5. 5.🌈 A resistor has the colour bands violet, yellow, 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) 50 % (b) 25 % (c) 5 % (d) 0 %
  7. 7.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 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
  12. 12.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-red (b) yellow-white-orange (c) white-yellow-yellow (d) white-yellow-orange
  22. 22.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) blue-orange-brown (b) orange-blue-black (c) blue-orange-black (d) violet-orange-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-red (b) blue-blue-brown (c) blue-violet-red (d) blue-blue-orange
  28. 28.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) brown-white-orange (d) brown-white-yellow
  30. 30.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-red (b) yellow-brown-orange (c) brown-yellow-orange (d) yellow-brown-yellow
  33. 33.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) grey-violet-orange (b) violet-black-orange (c) violet-black-yellow (d) violet-black-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-brown-yellow (c) brown-brown-orange (d) brown-red-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-brown (b) blue-yellow-brown (c) yellow-blue-black (d) yellow-blue-red
  37. 37.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5
  2. 3
  3. 4.1
  4. 2
  5. 7.4
  6. 5 %
  7. 46
  8. 3.3
  9. 810
  10. 4
  11. the one nearest an end
  12. 2.8
  13. 21
  14. 13000
  15. 7
  16. 69
  17. 93
  18. 890
  19. 1100
  20. 25
  21. white-yellow-orange
  22. 2.1
  23. 2.2
  24. 9
  25. 59
  26. blue-orange-black
  27. blue-blue-red
  28. 230
  29. brown-white-orange
  30. 200
  31. 100
  32. yellow-brown-orange
  33. 33
  34. violet-black-orange
  35. brown-brown-orange
  36. yellow-blue-brown
  37. 14
  38. 4.6
  39. 47000
  40. 5

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