← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 849 · 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 green stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-red (b) yellow-green-black (c) yellow-green-brown (d) green-yellow-brown
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54000 Ω resistor? (a) yellow-green-orange (b) green-yellow-red (c) green-yellow-orange (d) green-yellow-yellow
  5. 5.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) brown-white-red (b) white-brown-red (c) white-brown-orange (d) white-brown-brown
  8. 8.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does brown stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) green-orange-brown (b) green-orange-black (c) green-orange-red (d) orange-green-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-black (b) blue-grey-red (c) blue-grey-brown (d) grey-blue-brown
  15. 15.🌈 In the resistor colour code, which number does yellow stand for?
  16. 16.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-red (c) brown-blue-brown (d) brown-blue-black
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) blue-orange-red (b) orange-blue-red (c) orange-blue-brown (d) orange-blue-orange
  23. 23.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) brown-blue-brown (b) brown-blue-black (c) blue-brown-black (d) red-blue-black
  25. 25.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) red-brown-brown (b) brown-black-red (c) brown-black-brown (d) brown-black-black
  27. 27.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-black (b) red-violet-brown (c) orange-violet-black (d) violet-red-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-red-brown (b) brown-brown-red (c) brown-brown-black (d) brown-brown-brown
  30. 30.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) orange-brown-black (d) brown-red-black
  33. 33.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-yellow (b) brown-green-red (c) green-brown-orange (d) brown-green-orange
  35. 35.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) blue-green-red (b) green-blue-orange (c) blue-green-yellow (d) blue-green-orange
  37. 37.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) violet-red-brown (b) violet-red-black (c) red-violet-black (d) grey-red-black

Answer key

  1. 5
  2. yellow-green-brown
  3. 5 %
  4. green-yellow-orange
  5. 67000
  6. 39
  7. white-brown-red
  8. 89
  9. 190
  10. 2
  11. 760
  12. 1
  13. green-orange-brown
  14. blue-grey-brown
  15. 4
  16. 47
  17. 3
  18. 69
  19. 580
  20. 7.1
  21. brown-blue-brown
  22. orange-blue-red
  23. 890
  24. brown-blue-black
  25. the one nearest an end
  26. brown-black-brown
  27. 440
  28. red-violet-black
  29. brown-brown-brown
  30. 61
  31. 1.9
  32. red-brown-black
  33. 3.4
  34. brown-green-orange
  35. 38
  36. blue-green-orange
  37. 73
  38. 34000
  39. 6
  40. violet-red-black

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