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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 32 · 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) 5 % (b) 25 % (c) 50 % (d) 0 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) red-brown-red (b) brown-red-brown (c) brown-red-orange (d) brown-red-red
  3. 3.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  4. 4.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  5. 5.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-red (b) red-brown-brown (c) brown-red-black (d) brown-red-brown
  10. 10.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) green-white-orange (b) white-green-yellow (c) white-green-red (d) white-green-orange
  19. 19.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) white-brown-black (b) brown-white-black (c) red-white-black (d) brown-white-brown
  25. 25.🌈 In the resistor colour code, which number does brown stand for?
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-orange (b) orange-yellow-orange (c) yellow-orange-red (d) yellow-orange-yellow
  32. 32.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) yellow-orange-black (b) yellow-yellow-black (c) orange-yellow-black (d) orange-yellow-brown
  35. 35.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) violet-red-black (b) blue-red-brown (c) red-blue-black (d) blue-red-black
  37. 37.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-orange (b) white-black-orange (c) white-white-red (d) white-white-yellow
  39. 39.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. brown-red-red
  3. 870
  4. the one nearest an end
  5. 2.8
  6. 0
  7. 3600
  8. 360
  9. brown-red-brown
  10. 170
  11. 48
  12. 8
  13. 92
  14. 9
  15. 5
  16. 7400
  17. 100
  18. white-green-orange
  19. 8.1
  20. 2.4
  21. 9300
  22. 11
  23. 950
  24. brown-white-black
  25. 1
  26. 2
  27. 410
  28. 280
  29. 3
  30. 21000
  31. yellow-orange-orange
  32. 7.6
  33. 9
  34. orange-yellow-black
  35. 93
  36. blue-red-black
  37. 6.2
  38. white-white-orange
  39. 34
  40. 91

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