← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 397 · 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.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-red (b) orange-yellow-brown (c) orange-orange-black (d) orange-orange-brown
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  7. 7.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  10. 10.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-yellow (b) red-violet-red (c) red-violet-orange (d) violet-red-orange
  13. 13.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does white stand for?
  18. 18.🌈 In the resistor colour code, which number does blue stand for?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-yellow-red (b) orange-orange-brown (c) orange-orange-orange (d) orange-orange-red
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-blue-black (b) blue-black-black (c) blue-black-brown (d) violet-black-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-black (b) red-black-brown (c) orange-black-black (d) orange-red-black
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) white-blue-orange (b) blue-white-red (c) blue-white-yellow (d) blue-white-orange
  30. 30.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-orange (b) orange-brown-orange (c) brown-orange-red (d) brown-orange-yellow
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-orange (c) green-red-yellow (d) green-red-red
  35. 35.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72000 Ω resistor? (a) red-violet-orange (b) violet-red-orange (c) violet-red-yellow (d) violet-red-red
  38. 38.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 0
  2. 11
  3. orange-orange-brown
  4. 5
  5. 400
  6. the one nearest an end
  7. 90
  8. 7
  9. 5 %
  10. 190
  11. 3
  12. red-violet-orange
  13. 8.1
  14. 8800
  15. 12
  16. 3.7
  17. 9
  18. 6
  19. 1
  20. 57000
  21. orange-orange-red
  22. blue-black-black
  23. red-black-black
  24. 8
  25. 340
  26. 2.4
  27. 260
  28. 24
  29. blue-white-orange
  30. 87
  31. 1.5
  32. 860
  33. brown-orange-orange
  34. green-red-orange
  35. 5.6
  36. 9.5
  37. violet-red-orange
  38. 5.3
  39. 170
  40. 110

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