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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 226 · 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) 50 % (c) 0 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) white-grey-black (b) grey-black-brown (c) white-black-black (d) grey-black-black
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  6. 6.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) red-orange-brown (b) orange-red-red (c) orange-red-black (d) orange-red-brown
  11. 11.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-orange (b) violet-black-yellow (c) violet-black-red (d) grey-violet-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-black (b) brown-red-red (c) red-brown-brown (d) brown-red-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-red (c) violet-red-orange (d) violet-red-yellow
  27. 27.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-red (b) brown-orange-orange (c) orange-brown-yellow (d) orange-brown-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-yellow (b) white-blue-orange (c) white-blue-red (d) blue-white-orange
  38. 38.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 18000
  3. grey-black-black
  4. 5
  5. the one nearest an end
  6. 280
  7. 3
  8. 41
  9. 35000
  10. orange-red-brown
  11. 210
  12. 620
  13. 51
  14. 2400
  15. 370
  16. 27
  17. 260
  18. 9
  19. 58
  20. 2200
  21. 8.8
  22. 41000
  23. 92
  24. violet-black-orange
  25. brown-red-brown
  26. violet-red-orange
  27. 19
  28. 340
  29. 7.1
  30. 4
  31. 59
  32. 9400
  33. 6
  34. 570
  35. 560
  36. orange-brown-orange
  37. white-blue-orange
  38. 39000
  39. 90
  40. 2.2

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