← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 303 · 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 260 Ω resistor? (a) red-blue-red (b) red-blue-brown (c) red-blue-black (d) blue-red-brown
  2. 2.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  5. 5.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) brown-violet-orange (c) brown-violet-yellow (d) violet-brown-orange
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-black (b) grey-green-brown (c) white-green-black (d) green-grey-black
  12. 12.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-black (b) red-orange-brown (c) red-red-brown (d) red-red-red
  30. 30.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-yellow (b) green-red-red (c) green-red-orange (d) red-green-orange
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 In the resistor colour code, which number does yellow stand for?
  37. 37.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) grey-black-orange (b) grey-black-red (c) grey-black-brown (d) white-grey-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) green-grey-black (b) grey-yellow-black (c) yellow-grey-black (d) yellow-grey-brown

Answer key

  1. red-blue-brown
  2. 440
  3. 5
  4. the one nearest an end
  5. 48000
  6. brown-violet-orange
  7. 1
  8. 81
  9. 9
  10. 5 %
  11. grey-green-black
  12. 9.2
  13. 87
  14. 3000
  15. 2.1
  16. 46
  17. 6
  18. 15
  19. 26
  20. 75
  21. 1.2
  22. 6.1
  23. 480
  24. 2.4
  25. 410
  26. 3.4
  27. 6500
  28. 4.3
  29. red-red-brown
  30. 2.5
  31. 530
  32. 640
  33. green-red-orange
  34. 3
  35. 2
  36. 4
  37. 31000
  38. 20
  39. grey-black-red
  40. yellow-grey-black

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