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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 436 · 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 red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  3. 3.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  5. 5.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-brown (b) blue-violet-black (c) violet-green-black (d) green-violet-black
  15. 15.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-green-black (d) green-blue-brown
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-black (b) green-orange-black (c) yellow-green-black (d) orange-green-brown
  20. 20.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) orange-white-red (b) white-orange-brown (c) white-orange-orange (d) white-orange-red
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-orange (b) red-yellow-red (c) yellow-red-red (d) red-yellow-brown
  26. 26.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does green stand for?
  30. 30.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) orange-red-black (c) red-orange-brown (d) red-orange-black
  33. 33.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-brown (c) brown-red-black (d) brown-brown-black
  37. 37.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-brown (b) violet-green-orange (c) violet-green-red (d) green-violet-red
  39. 39.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does yellow stand for?

Answer key

  1. 27
  2. the one nearest an end
  3. 24
  4. 5 %
  5. 380
  6. 84000
  7. 35000
  8. 72
  9. 25
  10. 370
  11. 850
  12. 1500
  13. 16000
  14. green-violet-black
  15. 850
  16. green-green-brown
  17. 3
  18. 7
  19. orange-green-black
  20. 170
  21. 360
  22. white-orange-red
  23. 6
  24. 510
  25. red-yellow-red
  26. 350
  27. 7.5
  28. 9.2
  29. 5
  30. 62
  31. 4.6
  32. red-orange-black
  33. 78000
  34. 230
  35. 430
  36. brown-brown-black
  37. 2.9
  38. violet-green-red
  39. 17
  40. 4

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