← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 394 · 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) 0 % (b) 5 % (c) 50 % (d) 25 %
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-brown (c) violet-orange-orange (d) violet-orange-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) yellow-orange-orange (b) orange-black-red (c) orange-black-orange (d) orange-black-yellow
  6. 6.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  7. 7.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) white-orange-red (b) orange-white-red (c) orange-white-orange (d) orange-white-brown
  13. 13.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) blue-green-black (b) green-blue-black (c) green-green-black (d) green-green-brown
  15. 15.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does brown stand for?
  30. 30.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) green-orange-black (d) yellow-orange-black
  39. 39.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 4
  3. 61
  4. violet-orange-red
  5. orange-black-orange
  6. the one nearest an end
  7. 2.8
  8. 1.4
  9. 720
  10. 5
  11. 0
  12. orange-white-red
  13. 4.3
  14. green-green-black
  15. 1.5
  16. 8200
  17. 910
  18. 1900
  19. 900
  20. 38
  21. 9
  22. 3.9
  23. 41
  24. 33000
  25. 5700
  26. 73000
  27. 86
  28. 5.7
  29. 1
  30. 200
  31. 3400
  32. 6100
  33. 59
  34. 5.8
  35. 21
  36. 6.9
  37. 30
  38. yellow-orange-black
  39. 940
  40. 190

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