← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 351 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  3. 3.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-yellow (b) grey-white-orange (c) grey-white-red (d) white-grey-orange
  7. 7.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-orange (b) orange-green-orange (c) green-orange-red (d) green-orange-yellow
  15. 15.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-red (b) blue-green-black (c) blue-green-brown (d) green-blue-brown
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-red (b) white-green-brown (c) green-white-red (d) white-green-orange
  19. 19.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does red stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) red-blue-red (b) blue-red-red (c) blue-red-brown (d) blue-red-orange
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-violet-orange (b) blue-blue-red (c) blue-blue-orange (d) blue-blue-yellow
  23. 23.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) red-green-black (b) green-brown-black (c) brown-green-black (d) brown-green-brown
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 In the resistor colour code, which number does brown stand for?
  28. 28.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-brown (b) yellow-black-black (c) orange-black-black (d) yellow-orange-black
  31. 31.🌈 In the resistor colour code, which number does blue stand for?
  32. 32.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-brown (b) blue-green-brown (c) green-black-black (d) green-black-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-yellow (b) violet-white-red (c) white-violet-orange (d) violet-white-orange
  36. 36.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) brown-red-orange (b) red-brown-orange (c) red-brown-yellow (d) red-brown-red
  40. 40.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. 42
  4. 34
  5. 9500
  6. grey-white-orange
  7. 54
  8. 7
  9. 9
  10. 640
  11. 380
  12. 8
  13. 48000
  14. green-orange-orange
  15. 2.1
  16. 46
  17. blue-green-brown
  18. white-green-red
  19. 69
  20. 2
  21. blue-red-red
  22. blue-blue-orange
  23. 5000
  24. 820
  25. brown-green-black
  26. 0
  27. 1
  28. 17
  29. 340
  30. orange-black-black
  31. 6
  32. 4800
  33. 5
  34. green-black-brown
  35. violet-white-orange
  36. 4400
  37. 83
  38. 1600
  39. red-brown-orange
  40. 4000

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