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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 675 · 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) 50 % (b) 25 % (c) 5 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  4. 4.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-brown (b) yellow-yellow-red (c) yellow-green-red (d) yellow-yellow-orange
  8. 8.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) yellow-orange-brown (b) orange-black-brown (c) orange-black-black (d) orange-black-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-red (b) orange-white-brown (c) orange-white-orange (d) white-orange-red
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 In the resistor colour code, which number does black stand for?
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) white-red-black (c) orange-white-black (d) red-white-black
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-red (b) blue-violet-orange (c) violet-blue-red (d) blue-violet-brown
  32. 32.🌈 In the resistor colour code, which number does yellow stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-red (b) red-brown-red (c) brown-black-orange (d) brown-black-brown
  34. 34.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-orange (c) orange-red-red (d) red-black-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-red (b) brown-orange-orange (c) orange-brown-orange (d) orange-brown-yellow
  38. 38.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 6.8
  3. the one nearest an end
  4. 9500
  5. 7.2
  6. 3
  7. yellow-yellow-red
  8. 29
  9. 97
  10. 380
  11. 1
  12. 34000
  13. 8
  14. orange-black-brown
  15. orange-white-red
  16. 2
  17. 0
  18. 7
  19. 56
  20. 70
  21. 510
  22. 810
  23. red-white-black
  24. 5
  25. 5500
  26. 1.7
  27. 19000
  28. 4.8
  29. 3.2
  30. 10
  31. blue-violet-red
  32. 4
  33. brown-black-red
  34. 1
  35. 15
  36. red-black-red
  37. orange-brown-orange
  38. 39
  39. 1500
  40. 390

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