← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 728 · 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.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-blue-black (b) blue-green-black (c) green-green-black (d) green-green-brown
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  9. 9.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-red (b) violet-grey-brown (c) violet-violet-brown (d) violet-violet-black
  11. 11.🌈 In the resistor colour code, which number does yellow stand for?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  13. 13.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-orange (b) grey-blue-yellow (c) grey-blue-red (d) blue-grey-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-brown (b) brown-white-black (c) red-white-black (d) white-brown-black
  16. 16.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-yellow (c) green-red-red (d) green-red-orange
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-brown (b) white-white-black (c) white-white-red (d) white-black-brown
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-black (b) blue-green-brown (c) green-blue-red (d) green-blue-brown
  34. 34.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does black stand for?
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?

Answer key

  1. 9
  2. 6
  3. 3
  4. 42
  5. 3.1
  6. 17
  7. green-green-black
  8. the one nearest an end
  9. 700
  10. violet-violet-brown
  11. 4
  12. 5 %
  13. 680
  14. grey-blue-orange
  15. brown-white-black
  16. 73000
  17. 78000
  18. 110
  19. 45
  20. green-red-orange
  21. 7
  22. white-white-brown
  23. 1
  24. 330
  25. 9.2
  26. 63
  27. 33
  28. 27
  29. 60
  30. 2
  31. 6.8
  32. 7.4
  33. green-blue-brown
  34. 5.1
  35. 2800
  36. 2600
  37. 41
  38. 0
  39. 5
  40. 7700

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