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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 547 · 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 orange, black, black. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-red (b) white-yellow-orange (c) white-yellow-yellow (d) yellow-white-orange
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-red (b) white-red-orange (c) red-white-orange (d) white-red-yellow
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) blue-grey-black (b) white-blue-black (c) grey-blue-brown (d) grey-blue-black
  5. 5.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  9. 9.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  10. 10.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  11. 11.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) red-orange-red (c) orange-red-red (d) red-orange-brown
  15. 15.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) orange-red-red (b) red-black-red (c) red-black-orange (d) red-black-brown
  17. 17.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does grey stand for?
  21. 21.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-black (b) blue-white-black (c) brown-blue-black (d) white-blue-brown
  26. 26.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) grey-green-black (c) blue-grey-black (d) green-grey-black
  32. 32.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?

Answer key

  1. 30
  2. white-yellow-orange
  3. white-red-orange
  4. grey-blue-black
  5. 17
  6. 1.8
  7. 29000
  8. 5 %
  9. 33
  10. the one nearest an end
  11. 74000
  12. 170
  13. 240
  14. red-orange-red
  15. 93000
  16. red-black-red
  17. 40
  18. 6200
  19. 42
  20. 8
  21. 23
  22. 2
  23. 73
  24. 31000
  25. white-blue-black
  26. 620
  27. 7.4
  28. 83000
  29. 3
  30. 6
  31. green-grey-black
  32. 7.5
  33. 42000
  34. 77
  35. 33000
  36. 41
  37. 830
  38. 53
  39. 30
  40. 5000

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