← Resistor colour code lesson New set →

Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 312 · 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 white, white, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-red-black (c) brown-brown-brown (d) brown-brown-black
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-black (b) red-blue-brown (c) blue-red-black (d) orange-blue-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-yellow-brown (b) yellow-yellow-red (c) yellow-green-brown (d) yellow-yellow-black
  9. 9.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) red-yellow-black (b) brown-yellow-brown (c) brown-yellow-black (d) yellow-brown-black
  11. 11.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-orange (b) yellow-red-brown (c) yellow-red-red (d) red-yellow-red
  18. 18.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-brown (b) orange-black-red (c) orange-black-black (d) yellow-orange-brown
  21. 21.🌈 In the resistor colour code, which number does red stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-black (b) white-black-black (c) brown-white-black (d) white-white-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89 Ω resistor? (a) white-grey-black (b) grey-white-black (c) grey-white-brown (d) white-white-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-brown (b) yellow-green-red (c) yellow-green-orange (d) green-yellow-red
  25. 25.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-orange (b) red-blue-brown (c) blue-red-red (d) red-blue-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) red-violet-black (b) violet-red-brown (c) violet-red-black (d) grey-red-black
  29. 29.🌈 In the resistor colour code, which number does blue stand for?
  30. 30.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does green stand for?
  33. 33.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-red (b) white-blue-brown (c) white-blue-orange (d) blue-white-red

Answer key

  1. 99000
  2. 670
  3. 0
  4. brown-brown-black
  5. 1
  6. 300
  7. red-blue-black
  8. yellow-yellow-brown
  9. 42
  10. brown-yellow-black
  11. 6.7
  12. 780
  13. 69
  14. 880
  15. 9
  16. 5 %
  17. yellow-red-red
  18. 7.9
  19. 290
  20. orange-black-brown
  21. 2
  22. white-white-black
  23. grey-white-black
  24. yellow-green-red
  25. 4.8
  26. 2.5
  27. red-blue-red
  28. violet-red-black
  29. 6
  30. 520
  31. 4.3
  32. 5
  33. 6200
  34. 870
  35. 45
  36. 250
  37. 560
  38. 630
  39. 3
  40. white-blue-red

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