← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 431 · 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) any band (c) the gold band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) brown-violet-black (b) violet-brown-black (c) grey-brown-black (d) violet-brown-brown
  7. 7.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) violet-white-brown (b) violet-white-black (c) grey-white-black (d) white-violet-black
  11. 11.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does blue stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-orange (b) red-violet-red (c) violet-red-red (d) violet-red-brown
  16. 16.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) violet-green-orange (b) green-violet-orange (c) green-violet-red (d) green-violet-yellow
  20. 20.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-violet-black (b) violet-grey-black (c) grey-violet-black (d) violet-violet-brown
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 In the resistor colour code, which number does white stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) white-violet-brown (b) violet-white-brown (c) violet-white-black (d) violet-white-red
  27. 27.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-brown (b) red-white-brown (c) white-red-red (d) white-red-black
  33. 33.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does grey stand for?
  35. 35.🌈 In the resistor colour code, which number does black stand for?
  36. 36.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-brown (b) violet-red-black (c) orange-violet-black (d) red-violet-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) blue-white-red (c) white-blue-red (d) blue-white-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) orange-white-red (b) white-orange-brown (c) white-orange-orange (d) white-orange-red
  40. 40.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. 26
  4. 45
  5. 67
  6. violet-brown-black
  7. 500
  8. 54000
  9. 7
  10. violet-white-black
  11. 7100
  12. 2900
  13. 21
  14. 6
  15. violet-red-red
  16. 5600
  17. 64000
  18. 800
  19. green-violet-orange
  20. 94000
  21. 5
  22. 38000
  23. violet-violet-black
  24. 3
  25. 9
  26. violet-white-brown
  27. 1.5
  28. 58
  29. 33
  30. 6300
  31. 75000
  32. white-red-brown
  33. 4.9
  34. 8
  35. 0
  36. 79000
  37. red-violet-black
  38. blue-white-red
  39. white-orange-red
  40. 7.3

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