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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 697 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  3. 3.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) orange-red-brown (c) red-black-red (d) red-black-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) grey-black-brown (b) grey-black-black (c) white-grey-black (d) white-black-black
  7. 7.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-yellow (b) red-blue-orange (c) blue-red-orange (d) blue-red-red
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) brown-violet-orange (b) violet-brown-yellow (c) violet-brown-red (d) violet-brown-orange
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-brown (b) violet-yellow-orange (c) violet-yellow-red (d) yellow-violet-red
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-brown (b) white-red-red (c) red-white-red (d) red-white-orange
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) blue-orange-black (b) blue-orange-brown (c) blue-orange-red (d) orange-blue-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) blue-violet-orange (b) violet-blue-red (c) violet-blue-yellow (d) violet-blue-orange
  29. 29.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does violet stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) yellow-brown-orange (b) brown-yellow-yellow (c) brown-yellow-orange (d) brown-yellow-red
  34. 34.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) green-yellow-orange (c) yellow-black-orange (d) yellow-black-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) brown-orange-red (b) orange-brown-orange (c) orange-brown-red (d) orange-brown-brown

Answer key

  1. 5 %
  2. the one nearest an end
  3. 780
  4. 5.3
  5. red-black-brown
  6. grey-black-black
  7. 160
  8. 27
  9. 3200
  10. 4
  11. 76000
  12. blue-red-orange
  13. violet-brown-orange
  14. violet-yellow-red
  15. 6
  16. 4500
  17. 2
  18. 8300
  19. 940
  20. 23000
  21. 470
  22. 1
  23. 9600
  24. red-white-red
  25. 0
  26. 5
  27. blue-orange-brown
  28. violet-blue-orange
  29. 230
  30. 4
  31. 360
  32. 7
  33. brown-yellow-orange
  34. 870
  35. 86000
  36. 3.5
  37. 66
  38. 340
  39. yellow-black-orange
  40. orange-brown-red

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