← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 261 · 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 green, grey, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  4. 4.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-red (b) brown-red-red (c) brown-brown-orange (d) brown-brown-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-orange (b) green-orange-red (c) orange-green-brown (d) orange-green-red
  10. 10.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) violet-yellow-black (b) yellow-violet-brown (c) green-violet-black (d) yellow-violet-black
  20. 20.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-red (b) blue-grey-brown (c) blue-grey-black (d) grey-blue-brown
  24. 24.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-brown (b) orange-brown-black (c) orange-brown-red (d) brown-orange-brown
  26. 26.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) orange-red-black (b) red-red-brown (c) red-red-black (d) red-orange-black
  35. 35.🌈 In the resistor colour code, which number does green stand for?
  36. 36.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-red (b) brown-black-black (c) red-brown-brown (d) brown-black-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) yellow-white-orange (b) yellow-white-yellow (c) white-yellow-orange (d) yellow-white-red
  39. 39.🌈 In the resistor colour code, which number does yellow stand for?
  40. 40.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5.8
  2. 45000
  3. the one nearest an end
  4. 3.1
  5. 8100
  6. 7
  7. 5 %
  8. brown-brown-red
  9. orange-green-red
  10. 74
  11. 57
  12. 40000
  13. 0
  14. 1.8
  15. 85
  16. 6
  17. 75000
  18. 1
  19. yellow-violet-black
  20. 5.7
  21. 1.1
  22. 600
  23. blue-grey-brown
  24. 51
  25. orange-brown-brown
  26. 370
  27. 79000
  28. 2
  29. 650
  30. 840
  31. 180
  32. 6600
  33. 230
  34. red-red-black
  35. 5
  36. 3300
  37. brown-black-brown
  38. yellow-white-orange
  39. 4
  40. 980

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