← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 407 · 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 gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) white-brown-red (d) white-brown-brown
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) white-red-brown (b) red-white-red (c) red-white-black (d) red-white-brown
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-black (b) orange-grey-brown (c) grey-orange-brown (d) grey-orange-red
  10. 10.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-black (b) yellow-brown-brown (c) brown-yellow-brown (d) brown-yellow-red
  12. 12.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-black (b) red-brown-brown (c) brown-red-red (d) brown-red-brown
  17. 17.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-red (b) blue-green-brown (c) green-blue-brown (d) blue-green-black
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) red-grey-orange (c) grey-red-red (d) grey-red-orange
  28. 28.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) red-yellow-red (b) yellow-red-orange (c) yellow-red-brown (d) yellow-red-red
  30. 30.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does blue stand for?
  34. 34.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-yellow (b) grey-orange-orange (c) orange-grey-red (d) orange-grey-orange
  36. 36.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-black (b) orange-brown-brown (c) brown-orange-red (d) brown-orange-brown
  39. 39.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?

Answer key

  1. 5 %
  2. white-brown-red
  3. red-white-brown
  4. 3
  5. 3.5
  6. 0
  7. 30
  8. the one nearest an end
  9. grey-orange-brown
  10. 910
  11. brown-yellow-brown
  12. 400
  13. 48
  14. 9
  15. 8200
  16. brown-red-brown
  17. 46000
  18. 5
  19. 290
  20. 2.7
  21. blue-green-brown
  22. 4
  23. 52
  24. 400
  25. 33000
  26. 9.9
  27. grey-red-orange
  28. 53
  29. yellow-red-red
  30. 74000
  31. 98
  32. 28
  33. 6
  34. 5500
  35. orange-grey-orange
  36. 420
  37. 2.6
  38. brown-orange-brown
  39. 45000
  40. 76

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