← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 806 · 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 resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) orange-grey-red (b) grey-orange-brown (c) grey-orange-red (d) grey-orange-orange
  9. 9.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) violet-brown-orange (b) brown-violet-red (c) brown-violet-orange (d) brown-violet-yellow
  11. 11.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) brown-white-red (b) white-brown-brown (c) white-brown-red (d) white-brown-orange
  16. 16.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  18. 18.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 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
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) brown-grey-orange (b) grey-brown-orange (c) grey-brown-red (d) grey-brown-yellow
  22. 22.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-yellow (b) green-green-orange (c) green-green-red (d) green-blue-orange
  29. 29.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) grey-grey-black (b) violet-grey-brown (c) violet-grey-black (d) grey-violet-black
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-brown (b) yellow-violet-black (c) orange-violet-black (d) violet-orange-black
  36. 36.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) grey-yellow-brown (b) yellow-grey-red (c) yellow-grey-black (d) yellow-grey-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) brown-blue-yellow (c) blue-brown-orange (d) brown-blue-red

Answer key

  1. 42000
  2. 5
  3. 0
  4. 76000
  5. 4700
  6. 370
  7. 460
  8. grey-orange-red
  9. 380
  10. brown-violet-orange
  11. 78
  12. 3
  13. 310
  14. 9
  15. white-brown-red
  16. 98
  17. 5 %
  18. 96
  19. the one nearest an end
  20. 1
  21. grey-brown-orange
  22. 29
  23. 8
  24. 3800
  25. 4.2
  26. 110
  27. 670
  28. green-green-orange
  29. 240
  30. 620
  31. violet-grey-black
  32. 2
  33. 860
  34. 800
  35. orange-violet-black
  36. 91
  37. 8.9
  38. 73
  39. yellow-grey-brown
  40. brown-blue-orange

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