← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 169 · 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 grey, red, orange. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-brown (b) red-green-red (c) green-red-red (d) green-red-orange
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-red (b) white-black-brown (c) white-white-brown (d) white-white-black
  7. 7.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  10. 10.🌈 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
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-black (b) white-black-red (c) brown-white-brown (d) white-black-brown
  16. 16.🌈 In the resistor colour code, which number does grey stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-brown (b) grey-red-black (c) red-grey-black (d) white-red-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-red (b) brown-white-orange (c) white-brown-red (d) brown-white-brown
  19. 19.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-brown (b) blue-grey-black (c) grey-blue-brown (d) blue-grey-red
  22. 22.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-yellow (b) blue-violet-orange (c) blue-blue-red (d) blue-blue-orange
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-red (b) green-red-brown (c) red-green-brown (d) red-green-black
  29. 29.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) grey-red-black (b) violet-red-black (c) red-violet-black (d) violet-red-brown

Answer key

  1. 82000
  2. green-red-red
  3. 3
  4. 40
  5. 7.2
  6. white-white-brown
  7. 57000
  8. 1.8
  9. 30
  10. the one nearest an end
  11. 5 %
  12. 420
  13. 1
  14. 54
  15. white-black-brown
  16. 8
  17. grey-red-black
  18. brown-white-red
  19. 4.1
  20. 1600
  21. blue-grey-brown
  22. 9.9
  23. 44
  24. 1.2
  25. 99
  26. 6.1
  27. blue-blue-orange
  28. red-green-brown
  29. 79000
  30. 8900
  31. 1
  32. 400
  33. 0
  34. 31
  35. 420
  36. 2700
  37. 2.8
  38. 71
  39. 26
  40. violet-red-black

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