← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 605 · 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 yellow, orange, red. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  10. 10.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-red (c) red-violet-brown (d) red-violet-black
  12. 12.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-red (b) orange-red-brown (c) red-orange-brown (d) orange-red-black
  14. 14.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-yellow (b) brown-black-red (c) red-brown-orange (d) brown-black-orange
  16. 16.🌈 In the resistor colour code, which number does brown stand for?
  17. 17.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-brown (b) white-orange-orange (c) white-orange-red (d) orange-white-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-black (c) yellow-yellow-brown (d) yellow-yellow-red
  21. 21.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) red-orange-red (c) orange-red-brown (d) orange-red-red
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-red (b) red-black-orange (c) red-black-brown (d) orange-red-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) grey-black-black (c) violet-black-brown (d) grey-violet-black
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-brown (b) yellow-blue-black (c) blue-yellow-brown (d) yellow-blue-red
  33. 33.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does white stand for?
  38. 38.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does red stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-red (b) red-red-yellow (c) red-red-orange (d) red-orange-orange

Answer key

  1. 4300
  2. 4.2
  3. the one nearest an end
  4. 27000
  5. 9300
  6. 6.1
  7. 4
  8. 46000
  9. 5 %
  10. 7300
  11. red-violet-brown
  12. 51000
  13. orange-red-brown
  14. 340
  15. brown-black-orange
  16. 1
  17. 18
  18. 85
  19. white-orange-red
  20. yellow-yellow-brown
  21. 220
  22. 18
  23. 6
  24. orange-red-red
  25. 5
  26. 78000
  27. 450
  28. 800
  29. 660
  30. red-black-red
  31. violet-black-black
  32. yellow-blue-brown
  33. 9.8
  34. 430
  35. 930
  36. 240
  37. 9
  38. 84000
  39. 2
  40. red-red-orange

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