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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 943 · 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.🌈 In the resistor colour code, which number does brown stand for?
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) yellow-white-black (c) white-orange-black (d) orange-white-black
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  7. 7.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does grey stand for?
  12. 12.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-orange (b) blue-green-brown (c) blue-green-red (d) green-blue-red
  14. 14.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-black (b) grey-violet-brown (c) violet-black-red (d) violet-black-brown
  18. 18.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-brown (b) blue-violet-red (c) violet-blue-orange (d) violet-blue-red
  27. 27.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does blue stand for?
  29. 29.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61000 Ω resistor? (a) blue-brown-yellow (b) brown-blue-orange (c) blue-brown-orange (d) blue-brown-red
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) grey-green-orange (b) green-grey-yellow (c) green-grey-red (d) green-grey-orange
  34. 34.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) green-blue-black (c) violet-green-black (d) blue-green-black
  36. 36.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 1
  2. 5
  3. orange-white-black
  4. 7
  5. 56
  6. the one nearest an end
  7. 49
  8. 89000
  9. 3
  10. 43
  11. 8
  12. 2.9
  13. blue-green-red
  14. 190
  15. 9
  16. 5 %
  17. violet-black-brown
  18. 780
  19. 11000
  20. 5.5
  21. 9.3
  22. 6.3
  23. 440
  24. 2300
  25. 59
  26. violet-blue-red
  27. 110
  28. 6
  29. 85
  30. 15
  31. 22
  32. blue-brown-orange
  33. green-grey-orange
  34. 640
  35. blue-green-black
  36. 900
  37. 6.9
  38. 4.9
  39. 26000
  40. 13

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