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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 866 · 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.

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  1. 1.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  8. 8.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-black (b) yellow-brown-red (c) yellow-brown-brown (d) brown-yellow-brown
  17. 17.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-black (c) green-yellow-black (d) yellow-black-brown
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands violet, yellow, orange. 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 brown, grey, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does blue stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-yellow (b) orange-black-red (c) yellow-orange-orange (d) orange-black-orange
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-black (b) yellow-brown-black (c) brown-yellow-brown (d) red-yellow-black
  31. 31.🌈 In the resistor colour code, which number does yellow stand for?
  32. 32.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) grey-green-red (b) green-grey-red (c) grey-green-brown (d) grey-green-orange
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-red (c) white-red-brown (d) white-red-orange
  39. 39.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5.8
  2. 5 %
  3. 4
  4. 7
  5. 30
  6. 31
  7. the one nearest an end
  8. 6100
  9. 9600
  10. 8
  11. 62
  12. 1.6
  13. 32
  14. 78
  15. 9
  16. yellow-brown-brown
  17. 94
  18. 2700
  19. 940
  20. 14000
  21. yellow-black-black
  22. 1
  23. 74000
  24. 2
  25. 18000
  26. 3
  27. 1.1
  28. 6
  29. orange-black-orange
  30. brown-yellow-black
  31. 4
  32. 5.1
  33. 16000
  34. 45000
  35. 92
  36. 79
  37. grey-green-red
  38. white-red-red
  39. 310
  40. 70

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