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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 218 · 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 an 810 Ω resistor? (a) grey-brown-red (b) grey-brown-brown (c) brown-grey-brown (d) grey-brown-black
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) blue-orange-red (c) orange-blue-brown (d) orange-blue-red
  3. 3.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does blue stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-red (b) yellow-violet-orange (c) violet-yellow-yellow (d) violet-yellow-orange
  6. 6.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) blue-yellow-black (b) yellow-green-black (c) green-yellow-black (d) green-yellow-brown
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  14. 14.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) orange-red-black (b) orange-red-brown (c) red-orange-black (d) yellow-red-black
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-orange (b) white-black-yellow (c) brown-white-orange (d) white-black-red
  18. 18.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-red (b) blue-green-red (c) green-black-brown (d) green-black-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) blue-brown-black (b) brown-blue-brown (c) red-blue-black (d) brown-blue-black
  28. 28.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-orange (b) violet-red-brown (c) red-violet-red (d) violet-red-red
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-red (c) grey-green-orange (d) green-grey-orange
  34. 34.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-black (b) orange-grey-brown (c) grey-orange-brown (d) grey-orange-red
  38. 38.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. grey-brown-brown
  2. orange-blue-red
  3. 150
  4. 6
  5. violet-yellow-orange
  6. 1.5
  7. green-yellow-black
  8. 4
  9. the one nearest an end
  10. 3
  11. 0
  12. 1100
  13. 5 %
  14. 23
  15. orange-red-black
  16. 5
  17. white-black-orange
  18. 2200
  19. 22
  20. 1
  21. 170
  22. 80000
  23. 8
  24. 480
  25. 17000
  26. green-black-red
  27. brown-blue-black
  28. 75000
  29. 600
  30. 83
  31. 950
  32. violet-red-red
  33. green-grey-orange
  34. 2.3
  35. 4500
  36. 69000
  37. grey-orange-brown
  38. 92
  39. 9
  40. 2

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