← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 108 · 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 violet stand for?
  2. 2.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  8. 8.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  11. 11.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does yellow stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) violet-brown-orange (b) brown-violet-orange (c) brown-violet-yellow (d) brown-violet-red
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-red (c) brown-black-orange (d) brown-black-brown
  19. 19.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does blue stand for?
  21. 21.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) grey-green-orange (b) green-grey-yellow (c) green-grey-orange (d) green-grey-red
  26. 26.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does white stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) yellow-orange-black (b) orange-yellow-black (c) orange-orange-brown (d) orange-orange-black
  29. 29.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) blue-brown-brown (c) brown-blue-red (d) blue-brown-red
  32. 32.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-brown (b) grey-red-black (c) white-red-black (d) red-grey-black
  38. 38.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does black stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-blue-black (b) blue-black-black (c) violet-black-black (d) blue-black-brown

Answer key

  1. 7
  2. 21
  3. 5
  4. 3.4
  5. 480
  6. 8
  7. the one nearest an end
  8. 1700
  9. 65000
  10. 5 %
  11. 31
  12. 4
  13. brown-violet-orange
  14. 1
  15. 78
  16. 81
  17. 870
  18. brown-black-red
  19. 49000
  20. 6
  21. 3.9
  22. 210
  23. 4.2
  24. 16000
  25. green-grey-orange
  26. 9600
  27. 9
  28. orange-orange-black
  29. 87
  30. 260
  31. blue-brown-red
  32. 10
  33. 650
  34. 61000
  35. 7.1
  36. 59
  37. grey-red-black
  38. 9900
  39. 0
  40. blue-black-black

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