← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 977 · 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 yellow stand for?
  2. 2.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  3. 3.🌈 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
  4. 4.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-orange (c) brown-blue-red (d) brown-blue-brown
  6. 6.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  9. 9.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, white, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) grey-blue-orange (b) grey-blue-brown (c) grey-blue-red (d) blue-grey-red
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-brown (b) yellow-orange-brown (c) orange-yellow-black (d) orange-yellow-red
  16. 16.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-red (b) orange-grey-red (c) grey-orange-orange (d) grey-orange-brown
  18. 18.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does black stand for?
  24. 24.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) white-yellow-brown (c) white-yellow-black (d) brown-yellow-black
  27. 27.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-orange (c) brown-green-yellow (d) brown-green-red
  30. 30.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) green-blue-black (b) yellow-blue-black (c) blue-yellow-black (d) yellow-blue-brown
  34. 34.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-orange (b) brown-red-brown (c) red-brown-red (d) brown-red-red

Answer key

  1. 4
  2. 2000
  3. the one nearest an end
  4. 26000
  5. brown-blue-red
  6. 29
  7. 200
  8. 5 %
  9. 6400
  10. 82
  11. 490
  12. 96
  13. grey-blue-red
  14. 7
  15. orange-yellow-brown
  16. 16000
  17. grey-orange-red
  18. 64000
  19. 34
  20. 71000
  21. 42
  22. 3.7
  23. 0
  24. 67000
  25. 150
  26. white-yellow-black
  27. 43
  28. 9400
  29. brown-green-orange
  30. 78
  31. 80
  32. 3.1
  33. yellow-blue-black
  34. 39
  35. 2.1
  36. 77
  37. 800
  38. 9
  39. 8
  40. brown-red-red

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