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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 868 · 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 resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  4. 4.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) brown-blue-orange (b) blue-brown-red (c) blue-brown-yellow (d) blue-brown-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) orange-yellow-black (b) orange-yellow-brown (c) yellow-orange-black (d) yellow-yellow-black
  18. 18.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) blue-white-red (b) white-blue-orange (c) white-blue-brown (d) white-blue-red
  21. 21.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) orange-red-orange (b) red-black-yellow (c) red-black-orange (d) red-black-red
  23. 23.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) red-blue-black (b) brown-blue-brown (c) brown-blue-black (d) blue-brown-black
  25. 25.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-black (b) grey-yellow-brown (c) grey-yellow-red (d) yellow-grey-brown
  30. 30.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) white-yellow-black (b) yellow-white-black (c) yellow-white-brown (d) green-white-black
  32. 32.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) orange-yellow-black (b) yellow-orange-black (c) green-orange-black (d) yellow-orange-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-red-brown (b) brown-brown-brown (c) brown-brown-black (d) brown-brown-red
  37. 37.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does red stand for?
  40. 40.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?

Answer key

  1. 750
  2. 8000
  3. the one nearest an end
  4. 77000
  5. 72
  6. 60000
  7. 130
  8. 5 %
  9. 1
  10. 1.4
  11. 460
  12. 3.9
  13. 28
  14. 7
  15. 9
  16. blue-brown-orange
  17. orange-yellow-black
  18. 49
  19. 1.2
  20. white-blue-red
  21. 7000
  22. red-black-orange
  23. 150
  24. brown-blue-black
  25. 27
  26. 680
  27. 520
  28. 40
  29. grey-yellow-brown
  30. 740
  31. yellow-white-black
  32. 430
  33. 88000
  34. 2.1
  35. yellow-orange-black
  36. brown-brown-brown
  37. 1600
  38. 450
  39. 2
  40. 8600

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