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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 962 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-red (b) brown-orange-brown (c) orange-brown-brown (d) brown-orange-black
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 In the resistor colour code, which number does orange stand for?
  5. 5.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) white-grey-orange (b) white-grey-brown (c) grey-white-red (d) white-grey-red
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-brown (b) yellow-orange-brown (c) orange-black-red (d) orange-black-black
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) brown-violet-red (b) violet-brown-orange (c) violet-brown-brown (d) violet-brown-red
  15. 15.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-brown (b) brown-white-red (c) white-brown-red (d) white-brown-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) blue-black-brown (d) violet-blue-red
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) blue-violet-brown (b) blue-violet-red (c) violet-blue-brown (d) blue-violet-black
  28. 28.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-brown (b) red-yellow-red (c) red-yellow-orange (d) yellow-red-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) grey-green-brown (b) grey-green-red (c) grey-green-black (d) green-grey-brown
  31. 31.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does violet stand for?
  33. 33.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-brown (c) blue-yellow-red (d) blue-yellow-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) violet-grey-brown (b) violet-grey-black (c) grey-violet-black (d) grey-grey-black
  36. 36.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?

Answer key

  1. brown-orange-brown
  2. 5 %
  3. 2
  4. 3
  5. 64
  6. 4
  7. 2900
  8. 40000
  9. 3.3
  10. 77000
  11. white-grey-red
  12. 9
  13. orange-black-brown
  14. violet-brown-red
  15. the one nearest an end
  16. 5
  17. 570
  18. 270
  19. 1
  20. 40
  21. 95000
  22. white-brown-red
  23. blue-black-red
  24. 8
  25. 430
  26. 230
  27. blue-violet-brown
  28. 6.6
  29. red-yellow-red
  30. grey-green-brown
  31. 47
  32. 7
  33. 75000
  34. blue-yellow-brown
  35. violet-grey-black
  36. 350
  37. 11
  38. 1500
  39. 460
  40. 450

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