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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 842 · 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 gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 520 Ω resistor? (a) green-red-red (b) red-green-brown (c) green-red-black (d) green-red-brown
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-yellow (b) violet-blue-orange (c) violet-blue-red (d) blue-violet-orange
  8. 8.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) orange-green-black (b) red-green-black (c) red-green-brown (d) green-red-black
  11. 11.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) green-yellow-black (b) yellow-green-black (c) yellow-yellow-brown (d) yellow-yellow-black
  24. 24.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-black (c) brown-blue-brown (d) brown-blue-red
  26. 26.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does grey stand for?
  31. 31.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-orange-red (b) red-red-red (c) red-red-orange (d) red-red-brown
  33. 33.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) brown-blue-red (c) blue-brown-brown (d) blue-brown-red
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-brown (b) yellow-yellow-orange (c) yellow-yellow-red (d) yellow-green-red
  40. 40.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. green-red-brown
  3. 5
  4. 13
  5. 86000
  6. 72
  7. violet-blue-orange
  8. the one nearest an end
  9. 1
  10. red-green-black
  11. 20000
  12. 89
  13. 98
  14. 3500
  15. 3
  16. 1.3
  17. 6
  18. 1
  19. 4.3
  20. 7000
  21. 8.5
  22. 4800
  23. yellow-yellow-black
  24. 250
  25. brown-blue-brown
  26. 10000
  27. 15
  28. 20
  29. 8.2
  30. 8
  31. 100
  32. red-red-red
  33. 91
  34. 24
  35. 17
  36. 630
  37. 29000
  38. blue-brown-red
  39. yellow-yellow-red
  40. 350

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