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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 543 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) orange-brown-black (d) orange-brown-brown
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) violet-white-black (c) violet-white-brown (d) white-violet-black
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  7. 7.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  8. 8.🌈 In the resistor colour code, which number does white stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) orange-red-red (b) red-orange-orange (c) red-orange-red (d) red-orange-brown
  10. 10.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does violet stand for?
  13. 13.🌈 In the resistor colour code, which number does yellow stand for?
  14. 14.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-orange (b) brown-black-yellow (c) red-brown-orange (d) brown-black-red
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) red-violet-black (b) violet-red-black (c) violet-red-brown (d) grey-red-black
  18. 18.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does red stand for?
  22. 22.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-orange (b) grey-blue-red (c) blue-grey-orange (d) grey-blue-yellow
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-orange (b) violet-yellow-red (c) yellow-violet-red (d) violet-yellow-brown
  36. 36.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does black stand for?
  38. 38.🌈 In the resistor colour code, which number does green stand for?
  39. 39.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24 Ω resistor? (a) yellow-red-black (b) red-yellow-black (c) orange-yellow-black (d) red-yellow-brown

Answer key

  1. orange-brown-brown
  2. 5 %
  3. violet-white-black
  4. 8
  5. 12
  6. 1000
  7. the one nearest an end
  8. 9
  9. red-orange-red
  10. 750
  11. 480
  12. 7
  13. 4
  14. 78
  15. 3100
  16. brown-black-orange
  17. violet-red-black
  18. 990
  19. 87
  20. 5.5
  21. 2
  22. 660
  23. 14000
  24. 1
  25. 41
  26. 6000
  27. 170
  28. 590
  29. 540
  30. 34000
  31. 7500
  32. 170
  33. 7700
  34. grey-blue-orange
  35. violet-yellow-red
  36. 190
  37. 0
  38. 5
  39. 9800
  40. red-yellow-black

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