← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 527 · 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) 25 % (b) 0 % (c) 50 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) yellow-black-red (c) yellow-black-orange (d) green-yellow-orange
  4. 4.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) brown-red-black (c) brown-red-brown (d) red-brown-black
  6. 6.🌈 In the resistor colour code, which number does white stand for?
  7. 7.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) blue-green-black (b) blue-blue-black (c) green-blue-brown (d) green-blue-black
  9. 9.🌈 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
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) yellow-grey-red (b) grey-yellow-orange (c) yellow-grey-yellow (d) yellow-grey-orange
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) brown-white-orange (b) white-brown-red (c) white-brown-orange (d) white-brown-yellow
  15. 15.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-red (c) yellow-yellow-brown (d) yellow-yellow-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-orange (b) brown-orange-yellow (c) brown-orange-red (d) orange-brown-orange
  26. 26.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-black (b) blue-red-brown (c) violet-red-black (d) red-blue-black
  33. 33.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-yellow (b) white-black-red (c) brown-white-orange (d) white-black-orange
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-brown (b) red-orange-black (c) orange-brown-black (d) brown-orange-black
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 9.7
  3. yellow-black-orange
  4. 2.8
  5. brown-red-black
  6. 9
  7. 92
  8. green-blue-black
  9. the one nearest an end
  10. yellow-grey-orange
  11. 7
  12. 0
  13. 8.5
  14. white-brown-orange
  15. 2300
  16. 110
  17. 61
  18. 20
  19. 900
  20. 8.1
  21. 3.3
  22. 8.4
  23. 240
  24. yellow-yellow-brown
  25. brown-orange-orange
  26. 2500
  27. 50
  28. 1.9
  29. 3
  30. 8000
  31. 690
  32. blue-red-black
  33. 32
  34. white-black-orange
  35. brown-orange-black
  36. 5
  37. 56000
  38. 80
  39. 83000
  40. 10

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids