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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 882 · 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 yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  8. 8.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 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
  11. 11.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-black (b) red-violet-brown (c) violet-red-brown (d) red-violet-red
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-orange (b) green-black-yellow (c) blue-green-orange (d) green-black-red
  22. 22.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) brown-green-red (c) brown-green-brown (d) green-brown-red
  26. 26.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) white-black-brown (b) brown-white-black (c) brown-black-black (d) white-black-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-brown (b) white-violet-orange (c) violet-white-red (d) white-violet-red
  30. 30.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) violet-brown-yellow (c) brown-violet-orange (d) violet-brown-orange
  32. 32.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) red-blue-red (b) blue-red-red (c) blue-red-orange (d) blue-red-brown
  35. 35.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does white stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-black (b) green-white-red (c) green-white-brown (d) white-green-brown
  40. 40.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?

Answer key

  1. 43
  2. 5
  3. 7
  4. 3
  5. 27
  6. 31000
  7. 5 %
  8. 810
  9. 170
  10. the one nearest an end
  11. 65
  12. 280
  13. red-violet-brown
  14. 8
  15. 6
  16. 7.7
  17. 84
  18. 40
  19. 1300
  20. 730
  21. green-black-orange
  22. 96
  23. 85
  24. 3400
  25. brown-green-red
  26. 1500
  27. 720
  28. white-black-black
  29. white-violet-red
  30. 52
  31. violet-brown-orange
  32. 56
  33. 5.7
  34. blue-red-red
  35. 1.6
  36. 75000
  37. 67000
  38. 9
  39. green-white-brown
  40. 43

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