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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 879 · 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) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) green-blue-orange (b) blue-green-red (c) green-blue-brown (d) green-blue-red
  4. 4.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) red-blue-orange (b) blue-red-orange (c) blue-red-red (d) blue-red-yellow
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-black (b) green-yellow-brown (c) yellow-green-brown (d) green-yellow-red
  17. 17.🌈 In the resistor colour code, which number does black stand for?
  18. 18.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does blue stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-yellow (b) brown-green-orange (c) green-brown-red (d) green-brown-orange
  22. 22.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) grey-green-red (b) grey-green-orange (c) grey-green-brown (d) green-grey-red
  29. 29.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-brown-brown (c) brown-red-brown (d) brown-brown-black
  34. 34.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-brown (b) white-green-orange (c) white-green-red (d) green-white-red
  38. 38.🌈 In the resistor colour code, which number does yellow stand for?
  39. 39.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. green-blue-red
  4. 9.7
  5. 2
  6. 420
  7. 19
  8. 840
  9. blue-red-orange
  10. 9
  11. 23000
  12. 420
  13. 42000
  14. 84000
  15. 9400
  16. green-yellow-brown
  17. 0
  18. 270
  19. 60
  20. 6
  21. green-brown-orange
  22. 7.1
  23. 95
  24. 600
  25. 21
  26. 25
  27. 8
  28. grey-green-red
  29. 900
  30. 83
  31. 920
  32. 51000
  33. brown-brown-brown
  34. 2700
  35. 19
  36. 380
  37. white-green-red
  38. 4
  39. 320
  40. 8.3

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