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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 904 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) brown-white-black (c) white-brown-black (d) brown-brown-black
  3. 3.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-orange (b) blue-blue-red (c) blue-violet-orange (d) blue-blue-yellow
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8900 Ω resistor? (a) white-grey-red (b) grey-white-brown (c) grey-white-red (d) grey-white-orange
  15. 15.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-brown (b) red-black-red (c) orange-red-red (d) red-black-orange
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-brown (b) green-green-black (c) green-yellow-black (d) yellow-green-black
  21. 21.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-black (b) brown-green-brown (c) green-brown-red (d) green-brown-brown
  23. 23.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does black stand for?
  25. 25.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-brown (b) blue-green-orange (c) green-blue-red (d) blue-green-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) grey-brown-red (b) brown-grey-orange (c) brown-grey-brown (d) brown-grey-red
  29. 29.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-brown (c) white-brown-black (d) white-brown-red
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. white-brown-black
  3. 5600
  4. the one nearest an end
  5. 9
  6. 17
  7. 180
  8. 4.7
  9. 45
  10. 860
  11. 1
  12. blue-blue-orange
  13. 2
  14. grey-white-red
  15. 7
  16. 28000
  17. 720
  18. 7
  19. red-black-red
  20. yellow-green-black
  21. 350
  22. green-brown-brown
  23. 700
  24. 0
  25. 97
  26. 4
  27. blue-green-red
  28. brown-grey-red
  29. 140
  30. 7600
  31. 510
  32. 49000
  33. 80
  34. white-brown-brown
  35. 3
  36. 870
  37. 44
  38. 3.1
  39. 7.9
  40. 520

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