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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 15 · 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 gold band (b) the widest gap (c) any band (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-red (b) orange-brown-orange (c) brown-orange-red (d) orange-brown-brown
  7. 7.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) blue-green-red (b) green-blue-brown (c) green-blue-orange (d) green-blue-red
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) blue-white-brown (b) white-blue-black (c) blue-white-black (d) violet-white-black
  16. 16.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-red (c) green-red-yellow (d) green-red-orange
  22. 22.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) green-yellow-brown (b) yellow-black-red (c) yellow-black-black (d) yellow-black-brown
  24. 24.🌈 In the resistor colour code, which number does blue stand for?
  25. 25.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-brown (b) orange-violet-black (c) violet-red-black (d) red-violet-black
  39. 39.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 25
  3. 570
  4. 9
  5. 9.6
  6. orange-brown-red
  7. 17000
  8. 5 %
  9. green-blue-red
  10. 1
  11. 170
  12. 740
  13. 46
  14. 600
  15. blue-white-black
  16. 870
  17. 17
  18. 7
  19. 0
  20. 9.2
  21. green-red-orange
  22. 2.4
  23. yellow-black-brown
  24. 6
  25. 380
  26. 81
  27. 520
  28. 12
  29. 8
  30. 53
  31. 29
  32. 70
  33. 7.8
  34. 71000
  35. 53000
  36. 19
  37. 3500
  38. red-violet-black
  39. 290
  40. 14000

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