← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 723 · 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 red, brown, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  6. 6.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) orange-blue-orange (c) orange-blue-red (d) blue-orange-orange
  17. 17.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-brown (c) brown-black-orange (d) brown-black-red
  20. 20.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-black (b) brown-white-red (c) brown-white-brown (d) white-brown-brown
  29. 29.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-orange (b) orange-red-red (c) orange-red-yellow (d) red-orange-orange
  32. 32.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) blue-orange-brown (b) blue-orange-black (c) violet-orange-black (d) orange-blue-black
  34. 34.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) green-white-black (b) yellow-white-black (c) yellow-white-brown (d) white-yellow-black
  36. 36.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-red (b) violet-violet-black (c) violet-violet-brown (d) violet-grey-brown
  39. 39.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?

Answer key

  1. 2.1
  2. 1
  3. 63
  4. 260
  5. the one nearest an end
  6. 2500
  7. 89000
  8. 970
  9. 6
  10. 5 %
  11. 4
  12. 2.8
  13. 7
  14. 8
  15. 5
  16. orange-blue-orange
  17. 440
  18. 5.1
  19. brown-black-red
  20. 66
  21. 4
  22. 54
  23. 33
  24. 530
  25. 44000
  26. 8.2
  27. 990
  28. brown-white-brown
  29. 9600
  30. 380
  31. orange-red-orange
  32. 4.9
  33. blue-orange-black
  34. 460
  35. yellow-white-black
  36. 5.2
  37. 7800
  38. violet-violet-brown
  39. 92
  40. 880

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