← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 832 · 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.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  2. 2.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) violet-red-black (c) red-blue-black (d) blue-red-black
  4. 4.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, green, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) brown-white-black (b) white-white-brown (c) white-white-black (d) white-black-black
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-black (b) violet-violet-black (c) violet-blue-black (d) blue-violet-brown
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) brown-violet-black (c) white-violet-brown (d) white-violet-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-black (b) green-brown-brown (c) brown-green-black (d) blue-brown-black
  20. 20.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does violet stand for?
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-yellow (b) red-brown-red (c) red-brown-orange (d) brown-red-orange
  25. 25.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does red stand for?
  28. 28.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-red (b) violet-white-red (c) white-violet-brown (d) white-violet-orange
  34. 34.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-red (b) red-green-yellow (c) green-red-orange (d) red-green-orange
  36. 36.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5300
  3. blue-red-black
  4. 90
  5. 1
  6. 8
  7. 59
  8. 75
  9. 200
  10. 90
  11. 1.3
  12. white-white-black
  13. 5 %
  14. 9
  15. 410
  16. blue-violet-black
  17. 5
  18. white-violet-black
  19. green-brown-black
  20. 22
  21. 66000
  22. 7
  23. 3
  24. red-brown-orange
  25. 87
  26. 6600
  27. 2
  28. 600
  29. 9800
  30. 170
  31. 61000
  32. 60
  33. white-violet-red
  34. 1100
  35. red-green-orange
  36. 4.9
  37. 14
  38. 13
  39. 62
  40. 230

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