← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 253 · 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 red, grey, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-brown (b) green-blue-red (c) blue-green-brown (d) green-blue-black
  9. 9.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  12. 12.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-yellow-black (b) yellow-green-brown (c) yellow-yellow-brown (d) yellow-yellow-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-red (b) yellow-black-brown (c) green-yellow-red (d) yellow-black-orange
  16. 16.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) violet-red-brown (b) violet-red-black (c) violet-red-red (d) red-violet-brown
  18. 18.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) violet-yellow-black (b) yellow-violet-brown (c) violet-yellow-brown (d) violet-yellow-red
  20. 20.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does black stand for?
  24. 24.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-yellow (b) white-black-orange (c) white-white-orange (d) white-white-red
  27. 27.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-orange (b) yellow-black-red (c) yellow-black-yellow (d) green-yellow-orange
  29. 29.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-yellow (b) red-violet-red (c) violet-red-orange (d) red-violet-orange
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) grey-orange-brown (b) white-orange-black (c) orange-grey-black (d) grey-orange-black
  32. 32.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) violet-white-brown (b) white-violet-black (c) white-violet-brown (d) white-violet-red
  36. 36.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) brown-yellow-orange (b) yellow-brown-red (c) brown-yellow-red (d) brown-yellow-brown
  39. 39.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?

Answer key

  1. 28
  2. 3500
  3. 8
  4. 37
  5. 7
  6. 2
  7. the one nearest an end
  8. green-blue-brown
  9. 94000
  10. 5
  11. 5 %
  12. 12
  13. 93000
  14. yellow-yellow-brown
  15. yellow-black-red
  16. 1500
  17. violet-red-brown
  18. 42000
  19. violet-yellow-brown
  20. 91000
  21. 55
  22. 80
  23. 0
  24. 3.5
  25. 67
  26. white-white-orange
  27. 91
  28. yellow-black-orange
  29. 62
  30. red-violet-orange
  31. grey-orange-black
  32. 29
  33. 22000
  34. 1.7
  35. white-violet-brown
  36. 820
  37. 68
  38. brown-yellow-red
  39. 89000
  40. 69

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