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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 772 · 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, black, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  9. 9.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) red-yellow-black (c) yellow-brown-black (d) brown-yellow-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-brown (b) orange-yellow-brown (c) orange-orange-red (d) orange-orange-black
  13. 13.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-yellow-brown (b) green-yellow-black (c) yellow-green-black (d) yellow-yellow-black
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) blue-red-brown (b) red-blue-red (c) blue-red-red (d) blue-red-orange
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-brown (c) white-red-orange (d) white-red-red
  39. 39.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-brown (b) orange-red-red (c) red-orange-red (d) orange-red-orange

Answer key

  1. 80
  2. 47
  3. 7600
  4. 33
  5. 690
  6. 3
  7. 46000
  8. 290
  9. the one nearest an end
  10. 1
  11. brown-yellow-black
  12. orange-orange-brown
  13. 56
  14. 5 %
  15. yellow-yellow-black
  16. 4
  17. 500
  18. 9900
  19. 2
  20. 590
  21. 4400
  22. 8
  23. 55
  24. 7.1
  25. 540
  26. blue-red-red
  27. 5
  28. 9.3
  29. 530
  30. 4.2
  31. 620
  32. 2.9
  33. 80
  34. 10
  35. 49
  36. 740
  37. 7
  38. white-red-red
  39. 8.6
  40. orange-red-red

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