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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 406 · 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 blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) blue-black-brown (d) violet-blue-red
  6. 6.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) brown-violet-black (b) violet-brown-black (c) violet-brown-brown (d) grey-brown-black
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  11. 11.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-brown (b) blue-violet-orange (c) violet-blue-red (d) blue-violet-red
  23. 23.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-red-orange (b) brown-brown-red (c) brown-brown-orange (d) brown-brown-yellow
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-black (b) orange-grey-black (c) grey-red-black (d) red-grey-brown
  33. 33.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-orange (c) orange-black-yellow (d) yellow-orange-orange
  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 red, brown, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) brown-violet-brown (c) violet-brown-brown (d) brown-violet-black
  40. 40.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?

Answer key

  1. 60
  2. 1.6
  3. 5
  4. the one nearest an end
  5. blue-black-red
  6. 26000
  7. 6.1
  8. 790
  9. violet-brown-black
  10. 5 %
  11. 48
  12. 3
  13. 920
  14. 0
  15. 8
  16. 5.9
  17. 33
  18. 4
  19. 6000
  20. 7.7
  21. 9
  22. blue-violet-red
  23. 500
  24. 2
  25. 900
  26. 85
  27. 2100
  28. 4200
  29. 880
  30. 54000
  31. brown-brown-orange
  32. red-grey-black
  33. 330
  34. orange-black-orange
  35. 86000
  36. 2.1
  37. 9.7
  38. 2600
  39. brown-violet-brown
  40. 350

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