← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 724 · 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) 5 % (b) 0 % (c) 50 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-violet-black (b) blue-blue-black (c) violet-blue-black (d) blue-blue-brown
  10. 10.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) green-violet-red (b) green-violet-brown (c) violet-green-red (d) green-violet-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) yellow-violet-red (b) violet-yellow-orange (c) violet-yellow-red (d) violet-yellow-brown
  16. 16.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-orange (b) yellow-yellow-brown (c) yellow-green-red (d) yellow-yellow-red
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-red (b) yellow-orange-brown (c) orange-yellow-black (d) orange-yellow-brown
  19. 19.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-red (b) brown-green-brown (c) brown-green-black (d) green-brown-brown
  21. 21.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97000 Ω resistor? (a) white-violet-red (b) violet-white-orange (c) white-violet-yellow (d) white-violet-orange
  23. 23.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-brown (c) white-brown-black (d) white-brown-red
  28. 28.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-orange (b) green-green-brown (c) green-blue-red (d) green-green-red
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does violet stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) red-orange-red (c) red-orange-orange (d) orange-red-red
  34. 34.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) orange-brown-black (b) brown-orange-black (c) brown-orange-brown (d) red-orange-black
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) orange-white-red (b) orange-white-yellow (c) white-orange-orange (d) orange-white-orange

Answer key

  1. 5 %
  2. 930
  3. 9
  4. 240
  5. 5
  6. the one nearest an end
  7. 1
  8. 3
  9. blue-blue-black
  10. 120
  11. 0
  12. 550
  13. 55
  14. green-violet-red
  15. violet-yellow-red
  16. 82
  17. yellow-yellow-red
  18. orange-yellow-brown
  19. 2600
  20. brown-green-brown
  21. 400
  22. white-violet-orange
  23. 5.1
  24. 7.9
  25. 4
  26. 7.1
  27. white-brown-brown
  28. 64
  29. green-green-red
  30. 2
  31. 26
  32. 7
  33. red-orange-red
  34. 38
  35. 83000
  36. 11
  37. 36000
  38. brown-orange-black
  39. 8
  40. orange-white-orange

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