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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 750 · 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 3300 Ω resistor? (a) orange-orange-orange (b) orange-yellow-red (c) orange-orange-red (d) orange-orange-brown
  2. 2.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) grey-brown-orange (b) brown-grey-yellow (c) brown-grey-red (d) brown-grey-orange
  6. 6.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does green stand for?
  8. 8.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-red (b) yellow-green-red (c) yellow-yellow-orange (d) yellow-yellow-brown
  10. 10.🌈 In the resistor colour code, which number does red stand for?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) white-orange-black (b) grey-orange-brown (c) grey-orange-black (d) orange-grey-black
  13. 13.🌈 In the resistor colour code, which number does white stand for?
  14. 14.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) grey-violet-black (c) grey-black-black (d) violet-black-brown
  17. 17.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does violet stand for?
  21. 21.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does orange stand for?
  23. 23.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-white-black (b) white-black-brown (c) white-black-black (d) brown-black-black
  25. 25.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) blue-yellow-black (b) blue-yellow-brown (c) violet-yellow-black (d) yellow-blue-black
  32. 32.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-brown (b) grey-brown-red (c) brown-grey-red (d) grey-brown-orange
  34. 34.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) orange-green-orange (c) green-orange-red (d) orange-green-red
  36. 36.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-yellow (b) brown-brown-red (c) brown-brown-orange (d) brown-red-orange
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-brown (b) orange-green-red (c) green-orange-red (d) green-orange-orange
  39. 39.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?

Answer key

  1. orange-orange-red
  2. 2.4
  3. the one nearest an end
  4. 35
  5. brown-grey-orange
  6. 860
  7. 5
  8. 88
  9. yellow-yellow-red
  10. 2
  11. 5 %
  12. grey-orange-black
  13. 9
  14. 970
  15. 25
  16. violet-black-black
  17. 850
  18. 210
  19. 910
  20. 7
  21. 360
  22. 3
  23. 38
  24. white-black-black
  25. 70
  26. 5300
  27. 470
  28. 79000
  29. 6.8
  30. 340
  31. blue-yellow-black
  32. 6.7
  33. grey-brown-red
  34. 520
  35. orange-green-red
  36. 83000
  37. brown-brown-orange
  38. green-orange-red
  39. 18000
  40. 50

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