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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 880 · 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 widest gap (d) the one nearest an end
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) yellow-green-black (b) orange-green-brown (c) green-orange-black (d) orange-green-black
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) blue-brown-orange (b) brown-blue-yellow (c) brown-blue-red (d) brown-blue-orange
  4. 4.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands grey, 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) 50 % (b) 25 % (c) 5 % (d) 0 %
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-red (b) grey-orange-black (c) grey-orange-brown (d) orange-grey-brown
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) violet-orange-red (b) orange-violet-red (c) orange-violet-orange (d) orange-violet-brown
  16. 16.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does violet stand for?
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-orange (b) orange-white-brown (c) orange-white-red (d) white-orange-red
  30. 30.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-brown (b) brown-violet-brown (c) violet-brown-black (d) violet-brown-red
  32. 32.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does brown stand for?
  36. 36.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  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 blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. orange-green-black
  3. brown-blue-orange
  4. 92000
  5. 4.2
  6. 850
  7. 5 %
  8. 6
  9. 220
  10. 510
  11. 350
  12. 2.7
  13. 2.9
  14. grey-orange-brown
  15. orange-violet-red
  16. 55000
  17. 560
  18. 2200
  19. 25000
  20. 0
  21. 43
  22. 4
  23. 5
  24. 9
  25. 680
  26. 7
  27. 3
  28. 880
  29. orange-white-red
  30. 48000
  31. violet-brown-brown
  32. 3300
  33. 1000
  34. 98
  35. 1
  36. 550
  37. 7700
  38. 910
  39. 320
  40. 64

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