← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 348 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 In the resistor colour code, which number does orange stand for?
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  5. 5.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  7. 7.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-orange (b) grey-orange-red (c) grey-orange-brown (d) orange-grey-red
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-orange (b) white-red-brown (c) white-red-red (d) red-white-red
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-orange (b) orange-black-red (c) yellow-orange-orange (d) orange-black-yellow
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-black (b) red-green-black (c) green-brown-black (d) brown-green-brown
  17. 17.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-brown (b) violet-brown-red (c) violet-brown-black (d) brown-violet-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) orange-brown-black (c) yellow-brown-black (d) orange-brown-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) red-brown-red (b) brown-red-red (c) brown-red-brown (d) brown-red-orange
  23. 23.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) orange-brown-orange (c) brown-orange-orange (d) brown-orange-red
  29. 29.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-brown (b) brown-red-brown (c) brown-brown-black (d) brown-brown-red
  31. 31.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) violet-green-brown (b) grey-green-black (c) green-violet-black (d) violet-green-black
  38. 38.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?

Answer key

  1. 0
  2. 3
  3. 2
  4. 5 %
  5. 20
  6. the one nearest an end
  7. 980
  8. 4
  9. 3000
  10. 2100
  11. grey-orange-red
  12. white-red-red
  13. orange-black-orange
  14. 1
  15. 92
  16. brown-green-black
  17. 680
  18. 86
  19. 11000
  20. violet-brown-brown
  21. orange-brown-black
  22. brown-red-red
  23. 1.6
  24. 5800
  25. 27
  26. 75000
  27. 280
  28. brown-orange-orange
  29. 110
  30. brown-brown-brown
  31. 220
  32. 380
  33. 790
  34. 2.6
  35. 97
  36. 5
  37. violet-green-black
  38. 440
  39. 92000
  40. 96

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