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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 854 · 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.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-yellow (c) brown-white-red (d) brown-white-orange
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-red (b) orange-red-brown (c) orange-red-black (d) red-orange-brown
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-yellow (b) brown-yellow-orange (c) yellow-brown-orange (d) yellow-brown-red
  17. 17.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, white, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-black (c) yellow-yellow-brown (d) yellow-yellow-red
  25. 25.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does blue stand for?
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-brown (b) blue-green-brown (c) green-black-black (d) green-black-red
  32. 32.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does white stand for?
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 A resistor has the colour bands grey, grey, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) brown-green-brown (c) brown-green-red (d) green-brown-red
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) white-orange-red (b) orange-white-brown (c) orange-white-orange (d) orange-white-red
  40. 40.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 2
  3. 2600
  4. 85
  5. 60
  6. 650
  7. 5 %
  8. brown-white-orange
  9. 1
  10. 4.4
  11. 67
  12. 2400
  13. 20
  14. 3300
  15. orange-red-brown
  16. yellow-brown-orange
  17. 23
  18. 340
  19. 50000
  20. 50
  21. 490
  22. 10
  23. 7.2
  24. yellow-yellow-brown
  25. 110
  26. 61
  27. 930
  28. 6
  29. 0
  30. 8.8
  31. green-black-brown
  32. 950
  33. 17
  34. 470
  35. 9
  36. 5
  37. 88
  38. brown-green-red
  39. orange-white-red
  40. 860

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