← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 876 · 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 resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  4. 4.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  5. 5.🌈 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
  6. 6.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-orange (b) red-grey-brown (c) grey-red-red (d) red-grey-red
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) brown-brown-black (c) red-brown-black (d) brown-brown-brown
  18. 18.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-orange (b) white-yellow-red (c) yellow-white-brown (d) yellow-white-red
  20. 20.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-black (b) yellow-green-brown (c) yellow-green-red (d) green-yellow-brown
  27. 27.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-orange (b) grey-grey-red (c) grey-white-orange (d) grey-grey-yellow
  32. 32.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) yellow-red-orange (b) red-yellow-orange (c) yellow-red-yellow (d) yellow-red-red
  34. 34.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-orange (b) white-black-red (c) white-white-brown (d) white-white-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-green-black (c) yellow-green-brown (d) green-yellow-black
  38. 38.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-red (c) blue-yellow-brown (d) yellow-blue-red

Answer key

  1. 140
  2. 300
  3. 5 %
  4. 290
  5. the one nearest an end
  6. 820
  7. 60
  8. 530
  9. 6
  10. 220
  11. 3
  12. 320
  13. 5
  14. 4600
  15. red-grey-red
  16. 7
  17. brown-brown-black
  18. 1.1
  19. yellow-white-red
  20. 98
  21. 22000
  22. 0
  23. 510
  24. 7.3
  25. 9600
  26. yellow-green-brown
  27. 280
  28. 17
  29. 2.1
  30. 82
  31. grey-grey-orange
  32. 24
  33. yellow-red-orange
  34. 9.1
  35. 2
  36. white-white-red
  37. yellow-green-black
  38. 69
  39. 5.9
  40. blue-yellow-red

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