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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 146 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  4. 4.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) red-orange-brown (c) red-orange-red (d) orange-red-red
  7. 7.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does white stand for?
  9. 9.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-yellow (b) blue-yellow-orange (c) blue-yellow-red (d) yellow-blue-orange
  11. 11.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-red (b) red-grey-orange (c) grey-red-yellow (d) grey-red-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) green-brown-black (c) brown-yellow-black (d) yellow-brown-brown
  22. 22.🌈 In the resistor colour code, which number does blue stand for?
  23. 23.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-red-black (b) red-orange-black (c) red-orange-brown (d) orange-orange-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-red (b) red-red-brown (c) red-orange-red (d) red-red-orange
  26. 26.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-brown (c) red-green-orange (d) red-green-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-black (b) orange-white-brown (c) yellow-white-black (d) white-orange-black
  31. 31.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-brown (b) orange-blue-black (c) blue-red-black (d) red-blue-black
  33. 33.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does grey stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-orange (b) green-violet-red (c) violet-green-orange (d) green-violet-yellow
  38. 38.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?

Answer key

  1. 7
  2. 5 %
  3. the one nearest an end
  4. 190
  5. 8800
  6. red-orange-red
  7. 9600
  8. 9
  9. 92000
  10. blue-yellow-orange
  11. 270
  12. 0
  13. 10
  14. 90000
  15. 750
  16. 410
  17. 820
  18. 700
  19. 5.6
  20. grey-red-orange
  21. yellow-brown-black
  22. 6
  23. 20
  24. red-orange-black
  25. red-red-red
  26. 950
  27. 9.5
  28. 750
  29. red-green-red
  30. orange-white-black
  31. 94
  32. red-blue-black
  33. 800
  34. 38
  35. 1.3
  36. 8
  37. green-violet-orange
  38. 80
  39. 5000
  40. 8900

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