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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 797 · 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 white, black, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) brown-white-black (b) white-white-brown (c) white-black-black (d) white-white-black
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  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.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) yellow-white-brown (b) white-yellow-black (c) white-yellow-brown (d) white-yellow-red
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-orange (b) white-red-red (c) red-white-orange (d) white-red-yellow
  8. 8.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-red (b) orange-violet-brown (c) violet-orange-brown (d) orange-violet-black
  11. 11.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, red, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does blue stand for?
  26. 26.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does grey stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-yellow (b) green-black-red (c) blue-green-orange (d) green-black-orange
  31. 31.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-orange (b) white-yellow-red (c) yellow-white-orange (d) white-yellow-yellow
  34. 34.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) brown-green-red (b) green-brown-brown (c) green-brown-orange (d) green-brown-red
  38. 38.🌈 In the resistor colour code, which number does green stand for?
  39. 39.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) orange-brown-orange (c) brown-orange-orange (d) brown-orange-red

Answer key

  1. 90
  2. white-white-black
  3. 5 %
  4. the one nearest an end
  5. 380
  6. white-yellow-brown
  7. white-red-orange
  8. 33
  9. 0
  10. orange-violet-brown
  11. 7600
  12. 84000
  13. 910
  14. 700
  15. 47
  16. 2
  17. 690
  18. 510
  19. 5.6
  20. 42
  21. 9200
  22. 6000
  23. 2.6
  24. 52
  25. 6
  26. 66
  27. 61
  28. 130
  29. 8
  30. green-black-orange
  31. 2800
  32. 78000
  33. white-yellow-orange
  34. 74
  35. 810
  36. 310
  37. green-brown-red
  38. 5
  39. 230
  40. brown-orange-orange

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