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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 918 · 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 yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  3. 3.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  8. 8.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-red (b) red-blue-orange (c) blue-red-orange (d) blue-red-yellow
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58 Ω resistor? (a) grey-green-black (b) green-grey-black (c) blue-grey-black (d) green-grey-brown
  19. 19.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-red (b) blue-violet-brown (c) blue-blue-black (d) blue-blue-brown
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) green-yellow-orange (b) yellow-green-orange (c) yellow-green-red (d) yellow-green-yellow
  26. 26.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) violet-red-brown (c) red-violet-brown (d) red-violet-black
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) orange-blue-brown (b) blue-orange-black (c) yellow-blue-black (d) orange-blue-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-black (b) red-green-black (c) brown-green-brown (d) green-brown-black
  36. 36.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does black stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-brown (c) red-green-orange (d) red-green-red
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?

Answer key

  1. 4
  2. the one nearest an end
  3. 10
  4. 3200
  5. 8300
  6. 1100
  7. 5 %
  8. 52000
  9. 3800
  10. 53
  11. 7600
  12. 660
  13. 17
  14. blue-red-orange
  15. 8
  16. 32
  17. 2.6
  18. green-grey-black
  19. 59
  20. 37
  21. 28000
  22. 57000
  23. 48000
  24. blue-blue-brown
  25. yellow-green-orange
  26. 440
  27. 94000
  28. 17000
  29. 7
  30. 2
  31. 61
  32. 8.2
  33. red-violet-brown
  34. orange-blue-black
  35. brown-green-black
  36. 950
  37. 0
  38. red-green-red
  39. 9
  40. 500

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