← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 600 · 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 violet, orange, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-red (c) orange-grey-black (d) orange-grey-brown
  6. 6.🌈 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
  7. 7.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-red (b) violet-blue-orange (c) blue-violet-yellow (d) blue-violet-orange
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) brown-violet-black (b) white-violet-black (c) white-violet-brown (d) violet-white-black
  10. 10.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does green stand for?
  12. 12.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-black (b) brown-red-brown (c) red-brown-brown (d) brown-red-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-brown (b) white-red-orange (c) white-red-red (d) red-white-red
  20. 20.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 In the resistor colour code, which number does blue stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) white-brown-black (b) brown-white-black (c) red-white-black (d) brown-white-brown
  26. 26.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-brown (c) blue-yellow-red (d) yellow-blue-red
  32. 32.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?

Answer key

  1. 73
  2. 830
  3. 9
  4. 5 %
  5. orange-grey-brown
  6. the one nearest an end
  7. 120
  8. blue-violet-orange
  9. white-violet-black
  10. 27
  11. 5
  12. 790
  13. 820
  14. 4
  15. 430
  16. 44
  17. 57
  18. brown-red-brown
  19. white-red-red
  20. 95
  21. 36
  22. 1
  23. 3
  24. 6
  25. brown-white-black
  26. 4200
  27. 670
  28. 49000
  29. 16
  30. 2
  31. blue-yellow-red
  32. 8.6
  33. 78
  34. 470
  35. 3.4
  36. 320
  37. 39
  38. 900
  39. 460
  40. 11000

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