← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 801 · 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) the one nearest an end (c) any band (d) the gold band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-orange (b) grey-violet-orange (c) violet-black-yellow (d) violet-black-red
  3. 3.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-red (b) red-brown-brown (c) red-brown-orange (d) brown-red-red
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) red-yellow-black (b) yellow-red-black (c) orange-yellow-black (d) red-yellow-brown
  11. 11.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-red (b) grey-white-orange (c) grey-white-yellow (d) white-grey-orange
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-red-black (b) red-black-black (c) orange-black-black (d) red-black-brown
  14. 14.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  15. 15.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  16. 16.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 890 Ω resistor? (a) grey-white-red (b) grey-white-brown (c) white-grey-brown (d) grey-white-black
  18. 18.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 In the resistor colour code, which number does white stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) red-grey-black (b) brown-grey-black (c) grey-brown-black (d) brown-grey-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-brown (b) white-green-red (c) green-white-red (d) white-green-orange
  23. 23.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-red (b) green-brown-yellow (c) brown-green-orange (d) green-brown-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-red (c) brown-blue-brown (d) brown-blue-black
  26. 26.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) yellow-orange-red (b) orange-yellow-orange (c) orange-yellow-brown (d) orange-yellow-red
  29. 29.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) green-blue-brown (b) blue-blue-black (c) green-blue-black (d) blue-green-black
  34. 34.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) violet-blue-red (b) blue-black-brown (c) blue-black-red (d) blue-black-orange

Answer key

  1. the one nearest an end
  2. violet-black-orange
  3. 9.3
  4. 9900
  5. 87
  6. 3
  7. 2
  8. 1500
  9. red-brown-red
  10. red-yellow-black
  11. 2200
  12. grey-white-orange
  13. red-black-black
  14. 330
  15. 5 %
  16. 7.6
  17. grey-white-brown
  18. 77000
  19. 1
  20. 9
  21. brown-grey-black
  22. white-green-red
  23. 28000
  24. green-brown-orange
  25. brown-blue-brown
  26. 29000
  27. 8.8
  28. orange-yellow-red
  29. 390
  30. 62
  31. 250
  32. 54
  33. green-blue-black
  34. 930
  35. 500
  36. 34
  37. 7.8
  38. 82000
  39. 6800
  40. blue-black-red

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