← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 726 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-red (b) blue-red-brown (c) red-blue-black (d) red-blue-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) brown-red-brown (c) brown-red-black (d) red-brown-black
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, red, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-yellow (c) yellow-grey-orange (d) grey-yellow-orange
  18. 18.🌈 In the resistor colour code, which number does orange stand for?
  19. 19.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89 Ω resistor? (a) white-grey-black (b) white-white-black (c) grey-white-brown (d) grey-white-black
  21. 21.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-red (b) grey-white-orange (c) grey-grey-yellow (d) grey-grey-orange
  26. 26.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  27. 27.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-black-black (b) yellow-orange-black (c) orange-black-brown (d) orange-black-black
  34. 34.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) grey-blue-brown (b) blue-grey-brown (c) blue-grey-red (d) blue-grey-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-red (b) green-yellow-orange (c) yellow-black-yellow (d) yellow-black-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-brown (b) green-blue-red (c) blue-green-orange (d) blue-green-red
  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 red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?

Answer key

  1. 0
  2. 62
  3. red-blue-brown
  4. brown-red-black
  5. 5 %
  6. 7
  7. 2
  8. 80
  9. 62000
  10. 71
  11. 32
  12. 9.1
  13. 86
  14. 5
  15. 37000
  16. 2.2
  17. grey-yellow-orange
  18. 3
  19. 7.2
  20. grey-white-black
  21. 30
  22. 74
  23. 9
  24. 73
  25. grey-grey-orange
  26. the one nearest an end
  27. 89000
  28. 280
  29. 630
  30. 15000
  31. 380
  32. 94
  33. orange-black-black
  34. 84000
  35. blue-grey-brown
  36. yellow-black-orange
  37. blue-green-red
  38. 900
  39. 23
  40. 8100

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