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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 813 · 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.

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  1. 1.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8400 Ω resistor? (a) yellow-grey-red (b) grey-yellow-orange (c) grey-yellow-brown (d) grey-yellow-red
  4. 4.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  6. 6.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does grey stand for?
  8. 8.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  12. 12.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) green-violet-brown (b) green-violet-black (c) blue-violet-black (d) violet-green-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-brown (b) brown-white-orange (c) brown-white-red (d) white-brown-red
  19. 19.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) green-red-black (b) yellow-red-black (c) yellow-red-brown (d) red-yellow-black
  23. 23.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does blue stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) white-red-brown (b) red-white-black (c) red-white-brown (d) red-white-red
  31. 31.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-orange (b) red-violet-red (c) red-violet-yellow (d) violet-red-orange
  34. 34.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) red-brown-black (c) brown-brown-black (d) brown-brown-brown
  38. 38.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does orange stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-red (b) blue-green-black (c) green-blue-brown (d) blue-green-brown

Answer key

  1. 360
  2. 9.2
  3. grey-yellow-red
  4. 8000
  5. 5 %
  6. 25000
  7. 8
  8. 21
  9. 93
  10. 2
  11. the one nearest an end
  12. 640
  13. 37000
  14. 7
  15. 5.3
  16. 90
  17. green-violet-black
  18. brown-white-red
  19. 7300
  20. 52
  21. 570
  22. yellow-red-black
  23. 780
  24. 1
  25. 700
  26. 0
  27. 940
  28. 73
  29. 6
  30. red-white-brown
  31. 98
  32. 660
  33. red-violet-orange
  34. 8700
  35. 31
  36. 23000
  37. brown-brown-black
  38. 8.3
  39. 3
  40. blue-green-brown

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