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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 10 · 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 resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) orange-brown-black (d) brown-red-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-yellow (c) yellow-brown-red (d) brown-yellow-orange
  8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  9. 9.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does brown stand for?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) orange-red-brown (c) red-orange-red (d) orange-red-red
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) grey-blue-red (b) blue-grey-brown (c) blue-grey-red (d) blue-grey-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-red (b) yellow-blue-yellow (c) blue-yellow-orange (d) yellow-blue-orange
  22. 22.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-red (c) yellow-brown-brown (d) brown-yellow-red
  33. 33.🌈 In the resistor colour code, which number does yellow stand for?
  34. 34.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-red (b) violet-yellow-brown (c) yellow-violet-brown (d) yellow-violet-black
  39. 39.🌈 In the resistor colour code, which number does red stand for?
  40. 40.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?

Answer key

  1. 84000
  2. 7
  3. 5 %
  4. 5
  5. 27
  6. red-brown-black
  7. yellow-brown-orange
  8. the one nearest an end
  9. 69
  10. 960
  11. 380
  12. 780
  13. 1.1
  14. 7
  15. 65
  16. 1
  17. 6
  18. orange-red-red
  19. 3
  20. blue-grey-red
  21. yellow-blue-orange
  22. 2.1
  23. 5400
  24. 14
  25. 4100
  26. 600
  27. 81
  28. 6400
  29. 2
  30. 8.8
  31. 13
  32. yellow-brown-red
  33. 4
  34. 6100
  35. 9
  36. 19000
  37. 33
  38. yellow-violet-brown
  39. 2
  40. 80

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