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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 535 · 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 band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  2. 2.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-brown (b) red-violet-red (c) violet-red-red (d) red-violet-orange
  7. 7.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-orange (b) brown-yellow-orange (c) yellow-brown-red (d) yellow-brown-yellow
  11. 11.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 In the resistor colour code, which number does orange stand for?
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-yellow (b) orange-blue-orange (c) blue-orange-red (d) blue-orange-orange
  19. 19.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-red (b) green-white-yellow (c) green-white-orange (d) white-green-orange
  25. 25.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-red (c) white-brown-brown (d) white-brown-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-red-black (b) red-black-brown (c) red-black-black (d) orange-black-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) violet-orange-red (b) orange-violet-orange (c) orange-violet-brown (d) orange-violet-red
  29. 29.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) yellow-violet-brown (b) yellow-violet-black (c) green-violet-black (d) violet-yellow-black
  33. 33.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does black stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-red (b) orange-orange-yellow (c) orange-yellow-orange (d) orange-orange-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) green-white-red (b) white-green-orange (c) white-green-brown (d) white-green-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-red (b) brown-orange-black (c) orange-brown-brown (d) brown-orange-brown
  38. 38.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-orange (b) violet-orange-orange (c) orange-violet-red (d) orange-violet-yellow

Answer key

  1. the one nearest an end
  2. 230
  3. 1500
  4. 5 %
  5. 31000
  6. red-violet-red
  7. 3.7
  8. 91
  9. 11
  10. yellow-brown-orange
  11. 81
  12. 3.9
  13. 320
  14. 6
  15. 8
  16. 3
  17. 1
  18. blue-orange-orange
  19. 3700
  20. 930
  21. 90
  22. 380
  23. 40
  24. green-white-orange
  25. 610
  26. white-brown-brown
  27. red-black-black
  28. orange-violet-red
  29. 96
  30. 92
  31. 48000
  32. yellow-violet-black
  33. 360
  34. 0
  35. orange-orange-orange
  36. white-green-red
  37. brown-orange-brown
  38. 120
  39. 1.8
  40. orange-violet-orange

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