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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 634 · 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 violet stand for?
  2. 2.🌈 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
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-black (b) red-white-brown (c) white-red-black (d) orange-white-black
  7. 7.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-yellow (c) grey-orange-orange (d) grey-orange-red
  10. 10.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) white-green-brown (b) white-green-black (c) green-white-black (d) brown-green-black
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) brown-red-red (d) brown-red-brown
  25. 25.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-brown (b) violet-grey-brown (c) violet-violet-red (d) violet-violet-black
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 In the resistor colour code, which number does blue stand for?
  32. 32.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) green-orange-brown (c) orange-green-red (d) green-orange-red
  35. 35.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does white stand for?
  38. 38.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-black (b) red-violet-brown (c) red-violet-red (d) violet-red-brown

Answer key

  1. 7
  2. the one nearest an end
  3. 5
  4. 910
  5. 8.9
  6. red-white-black
  7. 96000
  8. 850
  9. grey-orange-orange
  10. 440
  11. 1900
  12. white-green-black
  13. 8
  14. 1
  15. 26
  16. 2
  17. 5 %
  18. 4
  19. 21
  20. 7.9
  21. 320
  22. 9800
  23. 76
  24. brown-red-red
  25. 22
  26. 9.9
  27. 60
  28. 83
  29. violet-violet-brown
  30. 3
  31. 6
  32. 820
  33. 42000
  34. green-orange-red
  35. 89
  36. 27
  37. 9
  38. 400
  39. 390
  40. red-violet-brown

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