← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 242 · 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 gold band (c) any band (d) the one nearest an end
  2. 2.🌈 In the resistor colour code, which number does orange stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  4. 4.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) violet-blue-brown (c) blue-violet-red (d) violet-blue-red
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) brown-violet-brown (b) violet-brown-red (c) violet-brown-brown (d) violet-brown-black
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-brown (b) green-red-black (c) red-green-black (d) blue-red-black
  11. 11.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-red (b) red-blue-brown (c) blue-red-red (d) red-blue-orange
  13. 13.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) red-brown-brown (b) red-brown-red (c) red-brown-orange (d) brown-red-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-red (c) yellow-yellow-brown (d) yellow-yellow-black
  24. 24.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does blue stand for?
  26. 26.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-brown (b) green-blue-red (c) blue-green-orange (d) blue-green-red
  32. 32.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-red (b) orange-orange-black (c) orange-yellow-brown (d) orange-orange-brown
  35. 35.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-black (b) orange-white-black (c) brown-orange-black (d) white-orange-brown
  38. 38.🌈 In the resistor colour code, which number does red stand for?
  39. 39.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) orange-yellow-brown (b) yellow-orange-black (c) yellow-orange-brown (d) yellow-orange-red

Answer key

  1. the one nearest an end
  2. 3
  3. 5 %
  4. 200
  5. violet-blue-red
  6. violet-brown-brown
  7. 7
  8. 8
  9. 71000
  10. green-red-black
  11. 900
  12. red-blue-red
  13. 42
  14. 32
  15. 5
  16. 9
  17. 17
  18. 6
  19. 5
  20. 1
  21. 38
  22. red-brown-red
  23. yellow-yellow-brown
  24. 2800
  25. 6
  26. 74
  27. 400
  28. 84
  29. 720
  30. 2300
  31. blue-green-red
  32. 220
  33. 920
  34. orange-orange-brown
  35. 8
  36. 420
  37. white-orange-black
  38. 2
  39. 140
  40. yellow-orange-brown

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