← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 75 · 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, violet, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) green-grey-black (c) grey-green-brown (d) green-grey-brown
  5. 5.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-yellow (b) brown-white-orange (c) white-black-red (d) white-black-orange
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-yellow (b) brown-green-orange (c) brown-green-red (d) green-brown-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) brown-yellow-yellow (b) brown-yellow-orange (c) yellow-brown-orange (d) brown-yellow-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) red-yellow-brown (b) yellow-red-black (c) orange-yellow-black (d) red-yellow-black
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-brown (b) blue-violet-red (c) violet-blue-red (d) blue-violet-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) white-brown-black (c) grey-brown-brown (d) grey-brown-black
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-brown (b) red-green-red (c) red-green-black (d) green-red-brown
  23. 23.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) green-yellow-black (c) yellow-black-brown (d) green-black-black
  30. 30.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) red-blue-black (b) blue-brown-black (c) brown-blue-brown (d) brown-blue-black
  32. 32.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does blue stand for?
  36. 36.🌈 In the resistor colour code, which number does red stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-black-black (b) blue-black-brown (c) violet-blue-black (d) blue-black-black
  38. 38.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-yellow (b) grey-orange-red (c) grey-orange-orange (d) orange-grey-orange

Answer key

  1. 1.7
  2. the one nearest an end
  3. 3
  4. green-grey-brown
  5. 78
  6. 1
  7. 2900
  8. 5 %
  9. white-black-orange
  10. 4
  11. 150
  12. 0
  13. 47000
  14. brown-green-orange
  15. brown-yellow-orange
  16. red-yellow-black
  17. blue-violet-red
  18. grey-brown-black
  19. 8
  20. 900
  21. 350
  22. red-green-brown
  23. 17
  24. 5
  25. 50
  26. 6800
  27. 8000
  28. 6.7
  29. yellow-black-black
  30. 540
  31. brown-blue-black
  32. 410
  33. 31
  34. 12
  35. 6
  36. 2
  37. blue-black-black
  38. 120
  39. 30
  40. grey-orange-orange

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