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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 784 · 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 7500 Ω resistor? (a) violet-green-red (b) green-violet-red (c) violet-green-orange (d) violet-green-brown
  2. 2.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-yellow (b) white-green-orange (c) green-white-orange (d) green-white-red
  6. 6.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-black (b) blue-green-brown (c) green-blue-brown (d) green-blue-red
  8. 8.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 0 % (d) 50 %
  10. 10.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  13. 13.🌈 In the resistor colour code, which number does white stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-orange (c) orange-green-yellow (d) orange-green-red
  15. 15.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-red (b) orange-white-brown (c) white-orange-brown (d) orange-white-black
  17. 17.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-black (b) brown-yellow-red (c) brown-yellow-brown (d) yellow-brown-brown
  22. 22.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) yellow-brown-black (b) brown-yellow-black (c) brown-yellow-brown (d) red-yellow-black
  24. 24.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-yellow (c) yellow-orange-red (d) yellow-orange-orange
  35. 35.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) red-brown-brown (b) brown-red-brown (c) brown-red-red (d) brown-red-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) violet-brown-orange (b) brown-violet-orange (c) brown-violet-red (d) brown-violet-yellow
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) green-brown-red (b) brown-green-orange (c) brown-green-red (d) brown-green-brown
  39. 39.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?

Answer key

  1. violet-green-red
  2. 4200
  3. 24
  4. 7
  5. green-white-orange
  6. 640
  7. green-blue-brown
  8. 87000
  9. 5 %
  10. 5900
  11. 840
  12. the one nearest an end
  13. 9
  14. orange-green-orange
  15. 780
  16. orange-white-brown
  17. 2300
  18. 7400
  19. 28
  20. 9000
  21. brown-yellow-brown
  22. 38
  23. brown-yellow-black
  24. 2.2
  25. 2200
  26. 6
  27. 20
  28. 600
  29. 0
  30. 2
  31. 1100
  32. 21000
  33. 530
  34. yellow-orange-orange
  35. 5.7
  36. brown-red-brown
  37. brown-violet-orange
  38. brown-green-red
  39. 540
  40. 970

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