← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 389 · 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 orange stand for?
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  5. 5.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-black (c) yellow-grey-black (d) green-grey-black
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-brown (b) grey-red-black (c) grey-red-red (d) red-grey-brown
  10. 10.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-red (b) violet-white-orange (c) white-violet-red (d) violet-white-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) violet-green-brown (b) violet-green-black (c) violet-green-red (d) green-violet-brown
  15. 15.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-yellow (b) white-violet-red (c) violet-white-orange (d) white-violet-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-black (b) green-green-brown (c) green-blue-black (d) blue-green-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-orange (b) violet-grey-yellow (c) grey-violet-orange (d) violet-grey-red
  20. 20.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-brown (b) green-yellow-red (c) yellow-black-red (d) yellow-black-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-red (b) orange-brown-orange (c) brown-orange-yellow (d) brown-orange-orange
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-orange (c) violet-orange-brown (d) violet-orange-red
  28. 28.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) white-yellow-orange (b) yellow-white-yellow (c) yellow-white-orange (d) yellow-white-red
  31. 31.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?

Answer key

  1. 3
  2. 1
  3. 5 %
  4. the one nearest an end
  5. 42
  6. 11
  7. yellow-grey-black
  8. 0
  9. grey-red-brown
  10. 21
  11. 67
  12. 8
  13. violet-white-red
  14. violet-green-brown
  15. 4.5
  16. 4300
  17. white-violet-orange
  18. green-green-black
  19. violet-grey-orange
  20. 7800
  21. 5
  22. yellow-black-red
  23. brown-orange-orange
  24. 2
  25. 3
  26. 93000
  27. violet-orange-red
  28. 87000
  29. 9.9
  30. yellow-white-orange
  31. 3600
  32. 460
  33. 260
  34. 3.2
  35. 72
  36. 64
  37. 1
  38. 37000
  39. 41
  40. 51

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