← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 64 · 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 white stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) red-green-black (b) brown-green-brown (c) brown-green-black (d) green-brown-black
  3. 3.🌈 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
  4. 4.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) violet-blue-red (b) blue-black-red (c) blue-black-orange (d) blue-black-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-black (b) orange-white-red (c) orange-white-brown (d) white-orange-brown
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-black (b) grey-orange-red (c) grey-orange-brown (d) orange-grey-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) white-grey-orange (b) grey-white-yellow (c) grey-white-red (d) grey-white-orange
  13. 13.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-black (b) grey-white-black (c) white-grey-brown (d) brown-grey-black
  16. 16.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) brown-yellow-brown (c) yellow-brown-black (d) red-yellow-black
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-orange (b) white-white-brown (c) white-black-red (d) white-white-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) white-red-brown (c) white-red-black (d) red-white-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-violet-orange (b) blue-blue-orange (c) blue-blue-yellow (d) blue-blue-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) green-orange-black (b) orange-green-black (c) yellow-green-black (d) orange-green-brown
  29. 29.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) white-blue-red (b) blue-white-orange (c) blue-white-brown (d) blue-white-red
  32. 32.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) red-violet-black (c) red-violet-brown (d) violet-red-brown
  38. 38.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does orange stand for?
  40. 40.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 9
  2. brown-green-black
  3. the one nearest an end
  4. 8300
  5. 7
  6. blue-black-red
  7. orange-white-brown
  8. 4
  9. 5100
  10. 5 %
  11. grey-orange-brown
  12. grey-white-orange
  13. 98000
  14. 1
  15. white-grey-black
  16. 89
  17. 76
  18. brown-yellow-black
  19. 6
  20. 8000
  21. 8900
  22. 2.2
  23. 92
  24. 40000
  25. white-white-red
  26. white-red-black
  27. blue-blue-orange
  28. orange-green-black
  29. 1.6
  30. 140
  31. blue-white-red
  32. 15
  33. 6600
  34. 30
  35. 2
  36. 710
  37. red-violet-brown
  38. 56
  39. 3
  40. 53

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