← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 264 · 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 brown stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) blue-yellow-brown (c) yellow-blue-brown (d) blue-yellow-red
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  4. 4.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-orange (b) white-red-yellow (c) red-white-orange (d) white-red-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-brown (b) green-white-black (c) white-green-black (d) blue-white-black
  7. 7.🌈 In the resistor colour code, which number does grey stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-red (b) yellow-orange-orange (c) orange-yellow-orange (d) orange-yellow-yellow
  9. 9.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) yellow-orange-brown (b) yellow-orange-black (c) orange-yellow-black (d) green-orange-black
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  13. 13.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) grey-violet-brown (b) grey-violet-black (c) white-violet-black (d) violet-grey-black
  21. 21.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-brown (c) red-green-orange (d) red-green-red
  34. 34.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) yellow-orange-black (b) orange-orange-brown (c) orange-orange-black (d) orange-yellow-black
  38. 38.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. 1
  2. blue-yellow-brown
  3. 5 %
  4. 56000
  5. white-red-orange
  6. green-white-black
  7. 8
  8. orange-yellow-orange
  9. 4.6
  10. 540
  11. yellow-orange-black
  12. the one nearest an end
  13. 560
  14. 190
  15. 31
  16. 25
  17. 74000
  18. 9
  19. 11
  20. grey-violet-black
  21. 20
  22. 0
  23. 5
  24. 9800
  25. 780
  26. 7
  27. 3
  28. 4
  29. 160
  30. 66
  31. 3.7
  32. 250
  33. red-green-red
  34. 330
  35. 1
  36. 61
  37. orange-orange-black
  38. 3.8
  39. 560
  40. 2

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