← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 609 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) yellow-orange-orange (b) orange-black-yellow (c) orange-black-red (d) orange-black-orange
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-brown (b) green-black-black (c) blue-green-brown (d) green-black-red
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  10. 10.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-brown (c) white-red-red (d) white-red-orange
  14. 14.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-orange (b) blue-brown-red (c) brown-blue-brown (d) brown-blue-red
  17. 17.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-brown (c) red-green-orange (d) red-green-red
  21. 21.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-red (b) red-blue-yellow (c) red-blue-orange (d) blue-red-orange
  31. 31.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-brown (c) grey-black-orange (d) grey-black-red
  33. 33.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-red-black (b) red-black-black (c) red-black-brown (d) orange-black-black
  36. 36.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does green stand for?
  39. 39.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. orange-black-orange
  2. 5 %
  3. 65000
  4. green-black-brown
  5. 2
  6. 4
  7. 6
  8. 22
  9. the one nearest an end
  10. 710
  11. 8.7
  12. 30
  13. white-red-red
  14. 300
  15. 36
  16. brown-blue-red
  17. 69000
  18. 47
  19. 1
  20. red-green-red
  21. 79
  22. 71
  23. 4.6
  24. 59
  25. 780
  26. 22
  27. 930
  28. 7.5
  29. 6100
  30. red-blue-orange
  31. 86
  32. grey-black-red
  33. 190
  34. 34
  35. red-black-black
  36. 19
  37. 4600
  38. 5
  39. 4.8
  40. 5.9

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