← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 19 · 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, violet, red. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  3. 3.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-yellow (b) violet-grey-orange (c) grey-violet-orange (d) violet-grey-red
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-orange (b) brown-brown-brown (c) brown-brown-red (d) brown-red-red
  7. 7.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) grey-violet-black (b) white-violet-black (c) violet-grey-black (d) grey-violet-brown
  9. 9.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-brown (b) violet-grey-black (c) grey-violet-brown (d) violet-grey-red
  16. 16.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-black (b) brown-blue-black (c) violet-brown-black (d) blue-brown-brown
  19. 19.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) violet-orange-black (b) grey-orange-black (c) orange-violet-black (d) violet-orange-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-yellow-brown (b) orange-orange-black (c) orange-orange-brown (d) orange-orange-red
  28. 28.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does blue stand for?
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) brown-red-black (c) brown-red-brown (d) red-brown-black
  33. 33.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-red (b) grey-white-yellow (c) white-grey-orange (d) grey-white-orange
  35. 35.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does white stand for?
  38. 38.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?

Answer key

  1. 3700
  2. 5 %
  3. 42
  4. violet-grey-orange
  5. the one nearest an end
  6. brown-brown-red
  7. 56000
  8. grey-violet-black
  9. 39
  10. 94
  11. 1100
  12. 31
  13. 2
  14. 260
  15. violet-grey-brown
  16. 34
  17. 73000
  18. blue-brown-black
  19. 3300
  20. 13
  21. 8000
  22. 7300
  23. 5.8
  24. 950
  25. 67
  26. violet-orange-black
  27. orange-orange-brown
  28. 82
  29. 6
  30. 3
  31. 6.1
  32. brown-red-black
  33. 39000
  34. grey-white-orange
  35. 69
  36. 5.2
  37. 9
  38. 26
  39. 10
  40. 18

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