← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 664 · 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 blue stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) yellow-blue-black (b) blue-yellow-brown (c) violet-yellow-black (d) blue-yellow-black
  3. 3.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) green-brown-black (b) brown-yellow-black (c) yellow-brown-black (d) yellow-brown-brown
  5. 5.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-green-black (c) green-yellow-black (d) yellow-green-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-yellow (b) white-red-orange (c) red-white-orange (d) white-red-red
  8. 8.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) green-violet-black (b) violet-green-brown (c) grey-green-black (d) violet-green-black
  11. 11.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-brown (b) white-grey-black (c) grey-white-brown (d) white-grey-red
  23. 23.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-brown (b) blue-black-black (c) blue-black-red (d) violet-blue-brown
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-red (c) brown-yellow-orange (d) yellow-brown-yellow
  32. 32.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does green stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-orange (b) violet-grey-red (c) violet-violet-red (d) violet-violet-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) red-grey-black (b) brown-grey-black (c) grey-brown-black (d) brown-grey-brown
  37. 37.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does orange stand for?
  40. 40.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?

Answer key

  1. 6
  2. blue-yellow-black
  3. 98
  4. yellow-brown-black
  5. 6800
  6. yellow-green-black
  7. white-red-orange
  8. 49
  9. 5.1
  10. violet-green-black
  11. 8.6
  12. 520
  13. 800
  14. 62
  15. 51000
  16. 4
  17. 5 %
  18. 9
  19. 0
  20. 520
  21. the one nearest an end
  22. white-grey-brown
  23. 750
  24. 7700
  25. 50
  26. blue-black-brown
  27. 8
  28. 9.6
  29. 45000
  30. 30
  31. yellow-brown-orange
  32. 630
  33. 140
  34. 5
  35. violet-violet-red
  36. brown-grey-black
  37. 19
  38. 8.1
  39. 3
  40. 70

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