← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 702 · 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 blue, red, orange. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) red-orange-brown (b) orange-red-black (c) orange-red-red (d) orange-red-brown
  6. 6.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) violet-green-red (b) violet-green-brown (c) violet-green-black (d) green-violet-brown
  11. 11.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-black (b) green-black-brown (c) green-black-red (d) blue-green-brown
  13. 13.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 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
  15. 15.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) red-orange-black (c) orange-red-black (d) red-orange-brown
  18. 18.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does white stand for?
  20. 20.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 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
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-black (b) grey-yellow-black (c) yellow-violet-black (d) violet-yellow-brown
  25. 25.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-orange (b) brown-brown-red (c) brown-red-red (d) brown-brown-brown
  29. 29.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-orange (b) yellow-green-red (c) green-yellow-red (d) yellow-green-brown

Answer key

  1. 62000
  2. 5 %
  3. 1
  4. 2
  5. orange-red-brown
  6. 140
  7. 840
  8. 0
  9. 8300
  10. violet-green-brown
  11. 23
  12. green-black-brown
  13. 870
  14. orange-yellow-red
  15. 10000
  16. 9.6
  17. red-orange-black
  18. 3.8
  19. 9
  20. 15
  21. 92
  22. 7.6
  23. the one nearest an end
  24. violet-yellow-black
  25. 300
  26. 4700
  27. 3900
  28. brown-brown-red
  29. 30
  30. 2700
  31. 8500
  32. 2600
  33. 77
  34. 5.4
  35. 800
  36. 2100
  37. 5.6
  38. 11
  39. 9.9
  40. yellow-green-red

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