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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 913 · 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 orange stand for?
  2. 2.🌈 In the resistor colour code, which number does blue stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  4. 4.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  9. 9.🌈 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
  10. 10.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) yellow-orange-black (d) green-orange-black
  13. 13.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) orange-white-red (c) white-orange-brown (d) white-orange-red
  16. 16.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) brown-blue-red (b) blue-brown-brown (c) blue-brown-orange (d) blue-brown-red
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-brown (c) green-blue-red (d) green-blue-black
  23. 23.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-brown (c) white-grey-black (d) brown-grey-black
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) red-white-orange (b) white-red-yellow (c) white-red-orange (d) white-red-red
  32. 32.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does red stand for?
  34. 34.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?

Answer key

  1. 3
  2. 6
  3. 5 %
  4. 9000
  5. 7900
  6. 4600
  7. 4
  8. 60000
  9. the one nearest an end
  10. 61
  11. 1
  12. yellow-orange-black
  13. 32000
  14. 5.6
  15. white-orange-red
  16. 860
  17. 2300
  18. 5
  19. 8
  20. blue-brown-red
  21. 4
  22. green-blue-brown
  23. 64000
  24. 89
  25. 7.7
  26. 0
  27. 10000
  28. 240
  29. 35
  30. white-grey-black
  31. white-red-orange
  32. 870
  33. 2
  34. 630
  35. 82
  36. 260
  37. 8.5
  38. 90
  39. 470
  40. 62

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