← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 638 · 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 orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) green-blue-orange (b) blue-green-orange (c) blue-green-yellow (d) blue-green-red
  5. 5.🌈 In the resistor colour code, which number does grey stand for?
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) white-yellow-black (b) brown-yellow-black (c) white-yellow-brown (d) yellow-white-black
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) violet-brown-brown (b) brown-violet-brown (c) brown-violet-red (d) brown-violet-black
  10. 10.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-red (b) brown-blue-brown (c) brown-blue-black (d) blue-brown-brown
  13. 13.🌈 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
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-black (b) green-red-brown (c) blue-red-black (d) red-green-black
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-brown (b) orange-grey-black (c) red-grey-black (d) grey-red-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-yellow (b) blue-red-orange (c) blue-red-red (d) red-blue-orange
  33. 33.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-black (b) orange-black-brown (c) yellow-orange-black (d) yellow-black-black
  37. 37.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) green-grey-brown (b) grey-green-black (c) green-grey-black (d) blue-grey-black

Answer key

  1. 3.3
  2. 600
  3. 5 %
  4. blue-green-orange
  5. 8
  6. 5
  7. white-yellow-black
  8. 7
  9. brown-violet-brown
  10. 80
  11. 75
  12. brown-blue-brown
  13. the one nearest an end
  14. green-red-black
  15. 3
  16. 300
  17. 92
  18. 0
  19. 3.9
  20. 16
  21. 840
  22. 88
  23. 290
  24. 450
  25. 280
  26. 2700
  27. 6
  28. 4.1
  29. 52
  30. 56000
  31. red-grey-black
  32. blue-red-orange
  33. 680
  34. 710
  35. 2
  36. orange-black-black
  37. 8700
  38. 36
  39. 65
  40. green-grey-black

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