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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 853 · 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 colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-brown (b) grey-orange-red (c) orange-grey-brown (d) grey-orange-black
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-yellow (b) white-white-orange (c) white-white-red (d) white-black-orange
  3. 3.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  7. 7.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  9. 9.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-black (b) red-red-black (c) brown-red-brown (d) red-brown-black
  11. 11.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-red (b) white-green-orange (c) green-white-orange (d) green-white-yellow
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-red (c) blue-yellow-brown (d) yellow-blue-red
  15. 15.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-grey-black (b) grey-grey-red (c) grey-grey-brown (d) grey-white-brown
  22. 22.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does yellow stand for?
  26. 26.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) red-brown-black (b) brown-black-black (c) red-black-black (d) brown-black-brown
  35. 35.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 730 Ω resistor? (a) violet-orange-red (b) orange-violet-brown (c) violet-orange-black (d) violet-orange-brown
  37. 37.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does orange stand for?

Answer key

  1. grey-orange-brown
  2. white-white-orange
  3. 770
  4. 3
  5. 18
  6. 5 %
  7. 7800
  8. the one nearest an end
  9. 3.9
  10. brown-red-black
  11. 200
  12. 27
  13. green-white-orange
  14. blue-yellow-red
  15. 6500
  16. 6
  17. 3.8
  18. 52000
  19. 75
  20. 1
  21. grey-grey-brown
  22. 200
  23. 9
  24. 29
  25. 4
  26. 460
  27. 86
  28. 9.6
  29. 6600
  30. 760
  31. 310
  32. 2
  33. 570
  34. brown-black-black
  35. 570
  36. violet-orange-brown
  37. 750
  38. 2.5
  39. 600
  40. 3

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