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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 782 · 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 blue stand for?
  2. 2.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) yellow-red-orange (b) red-yellow-orange (c) red-yellow-yellow (d) red-yellow-red
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-red (b) violet-violet-yellow (c) violet-grey-orange (d) violet-violet-orange
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-orange (c) red-green-red (d) red-green-brown
  15. 15.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  16. 16.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-brown (c) brown-blue-red (d) brown-blue-black
  18. 18.🌈 A resistor has the colour bands yellow, brown, black. 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, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-black (b) yellow-brown-red (c) yellow-brown-brown (d) brown-yellow-brown
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-orange (b) blue-black-red (c) violet-blue-orange (d) blue-black-yellow
  31. 31.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does grey stand for?
  36. 36.🌈 In the resistor colour code, which number does violet stand for?
  37. 37.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) brown-violet-black (b) white-violet-black (c) violet-white-black (d) white-violet-brown
  40. 40.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 6
  2. 80
  3. 2
  4. 9
  5. 1
  6. red-yellow-orange
  7. 5 %
  8. 3
  9. 32000
  10. 50
  11. 310
  12. 5200
  13. violet-violet-orange
  14. red-green-red
  15. the one nearest an end
  16. 48
  17. brown-blue-brown
  18. 41
  19. 4
  20. 630
  21. 720
  22. 69
  23. 72
  24. 2500
  25. yellow-brown-brown
  26. 0
  27. 66
  28. 4.7
  29. 3500
  30. blue-black-orange
  31. 48
  32. 4.1
  33. 850
  34. 45000
  35. 8
  36. 7
  37. 1.8
  38. 95
  39. white-violet-black
  40. 320

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