← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 996 · 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 orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 In the resistor colour code, which number does blue stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) white-blue-black (b) blue-white-brown (c) violet-white-black (d) blue-white-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) yellow-red-red (b) red-yellow-red (c) red-yellow-orange (d) red-yellow-brown
  9. 9.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  11. 11.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-orange (b) red-brown-red (c) brown-red-red (d) red-brown-brown
  16. 16.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-brown (c) green-blue-red (d) green-blue-black
  23. 23.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) grey-yellow-black (b) yellow-violet-black (c) violet-yellow-brown (d) violet-yellow-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) green-black-black (c) yellow-black-brown (d) green-yellow-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-black (b) white-red-brown (c) red-white-brown (d) white-red-red
  29. 29.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) green-yellow-orange (b) yellow-green-orange (c) yellow-green-yellow (d) yellow-green-red
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-orange (b) brown-red-red (c) brown-brown-brown (d) brown-brown-red
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-yellow (b) red-green-orange (c) green-red-orange (d) red-green-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-violet-red (b) blue-blue-orange (c) blue-blue-red (d) blue-blue-brown
  37. 37.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 31
  2. the one nearest an end
  3. 73
  4. 9
  5. 5
  6. 6
  7. blue-white-black
  8. red-yellow-red
  9. 5.9
  10. 5 %
  11. 1.6
  12. 38
  13. 3100
  14. 870
  15. red-brown-red
  16. 980
  17. 19
  18. 61
  19. 930
  20. 8300
  21. 420
  22. green-blue-brown
  23. 65
  24. 4
  25. 92000
  26. violet-yellow-black
  27. yellow-black-black
  28. white-red-brown
  29. 9100
  30. 390
  31. yellow-green-orange
  32. 1
  33. brown-brown-red
  34. 2
  35. red-green-orange
  36. blue-blue-red
  37. 4700
  38. 5.2
  39. 3.4
  40. 190

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