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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 984 · 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 green stand for?
  2. 2.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  3. 3.🌈 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
  4. 4.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) violet-orange-black (b) yellow-violet-black (c) orange-violet-black (d) orange-violet-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-red (b) green-brown-black (c) green-brown-brown (d) brown-green-brown
  8. 8.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-brown (b) blue-black-orange (c) blue-black-red (d) violet-blue-red
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-brown (b) brown-green-black (c) brown-green-red (d) green-brown-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) orange-violet-black (b) violet-orange-brown (c) grey-orange-black (d) violet-orange-black
  13. 13.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-orange (b) yellow-blue-yellow (c) blue-yellow-orange (d) yellow-blue-red
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-orange (b) orange-green-brown (c) orange-green-red (d) green-orange-red
  20. 20.🌈 In the resistor colour code, which number does red stand for?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) orange-blue-black (c) blue-orange-black (d) orange-blue-brown
  32. 32.🌈 In the resistor colour code, which number does yellow stand for?
  33. 33.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-orange (b) violet-green-red (c) green-violet-red (d) violet-green-brown
  36. 36.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does orange stand for?
  38. 38.🌈 In the resistor colour code, which number does violet stand for?
  39. 39.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?

Answer key

  1. 5
  2. 58000
  3. the one nearest an end
  4. 72000
  5. 5 %
  6. orange-violet-black
  7. green-brown-brown
  8. 670
  9. 2900
  10. blue-black-red
  11. brown-green-brown
  12. violet-orange-black
  13. 92000
  14. 710
  15. 9
  16. 1500
  17. yellow-blue-orange
  18. 1
  19. orange-green-red
  20. 2
  21. 6
  22. 8
  23. 97
  24. 3700
  25. 2
  26. 820
  27. 30000
  28. 0
  29. 420
  30. 65000
  31. orange-blue-black
  32. 4
  33. 60000
  34. 4.8
  35. violet-green-red
  36. 78000
  37. 3
  38. 7
  39. 31
  40. 3800

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