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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 933 · 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 resistor has the colour bands blue, green, red. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-red (b) green-brown-orange (c) brown-green-orange (d) green-brown-yellow
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) brown-yellow-black (b) yellow-brown-black (c) yellow-brown-brown (d) green-brown-black
  6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  7. 7.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) grey-blue-brown (c) white-blue-black (d) blue-grey-black
  9. 9.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-red (b) yellow-black-brown (c) yellow-black-black (d) green-yellow-brown
  11. 11.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-red (c) green-blue-black (d) green-blue-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-red (b) brown-blue-yellow (c) brown-blue-orange (d) blue-brown-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) yellow-brown-black (c) orange-brown-black (d) orange-brown-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-red (b) orange-grey-brown (c) grey-orange-black (d) grey-orange-brown
  23. 23.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does white stand for?
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) white-green-red (b) green-white-brown (c) green-white-red (d) green-white-orange
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-black (c) green-grey-red (d) green-grey-brown
  35. 35.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) orange-brown-black (c) orange-brown-brown (d) brown-orange-brown
  37. 37.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) red-orange-brown (b) orange-red-brown (c) orange-red-black (d) orange-red-red
  39. 39.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 6500
  2. 5 %
  3. 8.3
  4. green-brown-orange
  5. yellow-brown-black
  6. the one nearest an end
  7. 9.6
  8. grey-blue-black
  9. 2700
  10. yellow-black-brown
  11. 300
  12. 31000
  13. 870
  14. 1
  15. 2
  16. 5400
  17. 13
  18. 65
  19. green-blue-brown
  20. brown-blue-orange
  21. orange-brown-black
  22. grey-orange-brown
  23. 750
  24. 2.8
  25. 100
  26. 5
  27. 260
  28. 9
  29. 3
  30. 2600
  31. 130
  32. 560
  33. green-white-red
  34. green-grey-brown
  35. 49
  36. orange-brown-brown
  37. 1.7
  38. orange-red-brown
  39. 68
  40. 2

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