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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 808 · 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 white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  3. 3.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) brown-white-orange (b) white-brown-yellow (c) white-brown-red (d) white-brown-orange
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 In the resistor colour code, which number does black stand for?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-orange (b) grey-red-red (c) grey-red-brown (d) red-grey-red
  19. 19.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does grey stand for?
  21. 21.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) yellow-white-orange (b) white-yellow-yellow (c) white-yellow-orange (d) white-yellow-red
  25. 25.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) yellow-violet-yellow (b) yellow-violet-red (c) violet-yellow-orange (d) yellow-violet-orange
  27. 27.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) yellow-orange-brown (b) orange-black-red (c) orange-black-black (d) orange-black-brown
  31. 31.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-yellow (c) orange-black-orange (d) yellow-orange-orange
  36. 36.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does blue stand for?
  38. 38.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 920
  2. the one nearest an end
  3. 96
  4. white-brown-orange
  5. 7
  6. 74
  7. 92
  8. 530
  9. 1
  10. 0
  11. 5 %
  12. 5.2
  13. 2300
  14. 3
  15. 9
  16. 2
  17. 6400
  18. grey-red-red
  19. 210
  20. 8
  21. 2.9
  22. 2900
  23. 3.4
  24. white-yellow-orange
  25. 610
  26. yellow-violet-orange
  27. 4.8
  28. 87
  29. 20
  30. orange-black-brown
  31. 39
  32. 8200
  33. 82
  34. 42
  35. orange-black-orange
  36. 980
  37. 6
  38. 2.3
  39. 7300
  40. 67

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