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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 760 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-black (b) orange-green-brown (c) yellow-green-black (d) green-orange-black
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-black (b) brown-blue-black (c) blue-brown-brown (d) violet-brown-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) white-yellow-black (b) yellow-white-black (c) yellow-white-brown (d) green-white-black
  8. 8.🌈 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
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-red (b) white-blue-brown (c) blue-white-red (d) white-blue-orange
  12. 12.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-red (c) brown-black-orange (d) brown-black-yellow
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-black (b) red-orange-brown (c) orange-red-red (d) orange-red-brown
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-violet-brown (b) blue-blue-black (c) blue-blue-red (d) blue-blue-brown
  20. 20.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) blue-grey-orange (b) grey-blue-red (c) grey-blue-yellow (d) grey-blue-orange
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-orange (b) brown-brown-red (c) brown-red-red (d) brown-brown-brown
  28. 28.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?

Answer key

  1. orange-green-black
  2. 4
  3. 3.5
  4. 5 %
  5. 510
  6. blue-brown-black
  7. yellow-white-black
  8. the one nearest an end
  9. 2
  10. 22000
  11. white-blue-red
  12. 160
  13. brown-black-orange
  14. 9
  15. 9800
  16. 5
  17. orange-red-brown
  18. 1
  19. blue-blue-brown
  20. 33
  21. 82
  22. grey-blue-orange
  23. 6
  24. 3
  25. 92
  26. 520
  27. brown-brown-red
  28. 220
  29. 49
  30. 960
  31. 21
  32. 2200
  33. 85
  34. 6.2
  35. 69
  36. 780
  37. 7.1
  38. 420
  39. 840
  40. 4000

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