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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 931 · 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 brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does white stand for?
  5. 5.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) grey-black-black (c) grey-violet-black (d) violet-black-brown
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-brown (b) violet-violet-red (c) violet-grey-brown (d) violet-violet-black
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-red (b) blue-blue-brown (c) blue-violet-brown (d) blue-blue-black
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-yellow (b) red-red-orange (c) red-orange-orange (d) red-red-red
  16. 16.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  17. 17.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89 Ω resistor? (a) grey-white-black (b) white-grey-black (c) grey-white-brown (d) white-white-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-yellow (b) brown-violet-red (c) violet-brown-orange (d) brown-violet-orange
  29. 29.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) red-orange-black (b) orange-orange-black (c) orange-red-black (d) red-orange-brown
  31. 31.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-orange (b) blue-red-yellow (c) red-blue-orange (d) blue-red-red
  36. 36.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) brown-green-brown (b) green-brown-red (c) green-brown-black (d) green-brown-brown
  40. 40.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 180
  2. 5 %
  3. 510
  4. 9
  5. 65
  6. 0
  7. 16
  8. 6
  9. 650
  10. violet-black-black
  11. violet-violet-brown
  12. 2
  13. 79
  14. blue-blue-brown
  15. red-red-orange
  16. the one nearest an end
  17. 1900
  18. 3.1
  19. 120
  20. 1.9
  21. 38000
  22. 4
  23. 1.2
  24. 67
  25. 4000
  26. 910
  27. grey-white-black
  28. brown-violet-orange
  29. 7.9
  30. red-orange-black
  31. 580
  32. 14
  33. 7
  34. 26
  35. blue-red-orange
  36. 720
  37. 61
  38. 54
  39. green-brown-brown
  40. 9.7

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