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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 786 · 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) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-brown (b) brown-white-black (c) white-brown-brown (d) brown-white-red
  11. 11.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-red (b) grey-yellow-brown (c) yellow-grey-brown (d) yellow-grey-black
  14. 14.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) brown-white-orange (b) white-black-orange (c) white-black-yellow (d) white-black-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) yellow-white-black (b) green-white-black (c) yellow-white-brown (d) white-yellow-black
  17. 17.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does yellow stand for?
  20. 20.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) brown-white-red (b) white-black-red (c) white-black-brown (d) white-black-orange
  25. 25.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-orange (b) blue-white-brown (c) white-blue-red (d) blue-white-red
  29. 29.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) brown-yellow-brown (b) brown-yellow-orange (c) brown-yellow-red (d) yellow-brown-red
  32. 32.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 In the resistor colour code, which number does violet stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-red (b) red-blue-brown (c) red-blue-black (d) blue-red-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-black (c) yellow-blue-brown (d) yellow-blue-red
  39. 39.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) white-red-black (b) white-red-brown (c) brown-red-black (d) red-white-black

Answer key

  1. the one nearest an end
  2. 5 %
  3. 3
  4. 5
  5. 2
  6. 1
  7. 870
  8. 63000
  9. 6800
  10. brown-white-brown
  11. 9700
  12. 8
  13. yellow-grey-brown
  14. 54
  15. white-black-orange
  16. yellow-white-black
  17. 61
  18. 77000
  19. 4
  20. 6.4
  21. 73000
  22. 27
  23. 820
  24. white-black-red
  25. 6300
  26. 780
  27. 98
  28. blue-white-red
  29. 49
  30. 440
  31. brown-yellow-red
  32. 18
  33. 390
  34. 2
  35. 9
  36. 7
  37. red-blue-brown
  38. yellow-blue-brown
  39. 25
  40. white-red-black

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