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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 894 · 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 violet stand for?
  2. 2.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) grey-blue-black (b) blue-grey-brown (c) grey-blue-brown (d) grey-blue-red
  5. 5.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  9. 9.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-brown (b) brown-orange-black (c) brown-orange-red (d) orange-brown-brown
  16. 16.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) green-blue-black (b) blue-yellow-black (c) yellow-blue-black (d) yellow-blue-brown
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-black (b) white-grey-black (c) grey-white-black (d) grey-grey-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-black-red (b) white-white-brown (c) white-white-red (d) white-white-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-orange (c) grey-green-orange (d) green-grey-red
  22. 22.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does black stand for?
  28. 28.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) green-white-orange (b) white-green-orange (c) white-green-red (d) white-green-yellow
  31. 31.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) blue-grey-red (b) grey-blue-brown (c) blue-grey-black (d) blue-grey-brown
  39. 39.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does blue stand for?

Answer key

  1. 7
  2. 38
  3. 5 %
  4. grey-blue-brown
  5. 770
  6. 7500
  7. 2
  8. the one nearest an end
  9. 250
  10. 5
  11. 11
  12. 15
  13. 780
  14. 850
  15. brown-orange-brown
  16. 820
  17. 650
  18. yellow-blue-black
  19. grey-grey-black
  20. white-white-red
  21. green-grey-orange
  22. 340
  23. 17000
  24. 400
  25. 800
  26. 420
  27. 0
  28. 500
  29. 90
  30. white-green-orange
  31. 9600
  32. 9500
  33. 8.5
  34. 98
  35. 400
  36. 960
  37. 8
  38. blue-grey-brown
  39. 48000
  40. 6

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