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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 835 · 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 blue stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-red-orange (b) brown-brown-orange (c) brown-brown-red (d) brown-brown-yellow
  3. 3.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 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
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) orange-yellow-orange (b) yellow-orange-red (c) yellow-orange-yellow (d) yellow-orange-orange
  7. 7.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-red (b) brown-white-red (c) white-black-orange (d) white-black-brown
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) brown-violet-red (b) violet-brown-brown (c) violet-brown-red (d) violet-brown-orange
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-black-brown (b) white-white-black (c) white-white-red (d) white-white-brown
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) green-orange-red (c) orange-green-orange (d) orange-green-red
  15. 15.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) brown-green-orange (b) green-brown-yellow (c) green-brown-red (d) green-brown-orange
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 In the resistor colour code, which number does brown stand for?
  26. 26.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-brown (b) blue-red-black (c) green-red-black (d) red-green-black
  29. 29.🌈 In the resistor colour code, which number does red stand for?
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-yellow (b) green-violet-orange (c) violet-green-orange (d) green-violet-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) white-brown-black (c) red-white-black (d) brown-white-brown
  35. 35.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) violet-orange-red (b) violet-orange-orange (c) orange-violet-red (d) violet-orange-brown
  39. 39.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?

Answer key

  1. 6
  2. brown-brown-orange
  3. 7
  4. the one nearest an end
  5. 5 %
  6. yellow-orange-orange
  7. 23
  8. 790
  9. 2.2
  10. white-black-red
  11. violet-brown-red
  12. white-white-brown
  13. 3
  14. orange-green-red
  15. 77
  16. 95000
  17. green-brown-orange
  18. 0
  19. 1200
  20. 6.3
  21. 910
  22. 8.7
  23. 77000
  24. 8
  25. 1
  26. 5100
  27. 6500
  28. green-red-black
  29. 2
  30. 9
  31. 950
  32. 84000
  33. green-violet-orange
  34. brown-white-black
  35. 9.8
  36. 3500
  37. 55
  38. violet-orange-red
  39. 68000
  40. 1400

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