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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 617 · 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.🌈 In the resistor colour code, which number does red stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) grey-green-red (b) grey-green-brown (c) green-grey-red (d) grey-green-orange
  3. 3.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  7. 7.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  11. 11.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-orange (b) green-red-red (c) green-red-brown (d) red-green-red
  22. 22.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-brown (b) brown-grey-red (c) grey-brown-orange (d) grey-brown-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) orange-violet-brown (b) violet-orange-brown (c) violet-orange-red (d) violet-orange-black
  30. 30.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-orange (b) brown-orange-brown (c) orange-brown-red (d) brown-orange-red

Answer key

  1. 2
  2. grey-green-red
  3. 1.7
  4. 7400
  5. 42
  6. the one nearest an end
  7. 9.3
  8. 5.4
  9. 34
  10. 5 %
  11. 1.4
  12. 8
  13. 530
  14. 350
  15. 0
  16. 350
  17. 1
  18. 280
  19. 5
  20. 8700
  21. green-red-red
  22. 8500
  23. 53
  24. 9
  25. 5.5
  26. 13
  27. 69000
  28. grey-brown-red
  29. violet-orange-brown
  30. 98000
  31. 3600
  32. 790
  33. 910
  34. 30
  35. 2
  36. 590
  37. 10
  38. 73
  39. 47000
  40. brown-orange-red

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