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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 458 · 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 370 Ω resistor? (a) violet-orange-brown (b) orange-violet-red (c) orange-violet-brown (d) orange-violet-black
  2. 2.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  8. 8.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63 Ω resistor? (a) orange-blue-black (b) blue-orange-black (c) violet-orange-black (d) blue-orange-brown
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  13. 13.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-yellow (b) white-white-red (c) white-black-orange (d) white-white-orange
  21. 21.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-red (b) white-violet-orange (c) violet-white-orange (d) violet-white-yellow
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-orange (b) brown-black-brown (c) red-brown-red (d) brown-black-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-yellow (c) blue-yellow-red (d) yellow-blue-orange
  26. 26.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-red (b) brown-orange-red (c) orange-brown-orange (d) orange-brown-brown
  29. 29.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does orange stand for?
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) brown-green-black (b) green-white-black (c) white-green-black (d) white-green-brown
  37. 37.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-red (b) red-orange-red (c) red-red-orange (d) red-red-brown

Answer key

  1. orange-violet-brown
  2. 75000
  3. 12000
  4. 83000
  5. 4.1
  6. 4.2
  7. 5 %
  8. 310
  9. blue-orange-black
  10. 8
  11. 350
  12. 95000
  13. the one nearest an end
  14. 1
  15. 940
  16. 300
  17. 49000
  18. 55
  19. 0
  20. white-white-orange
  21. 620
  22. violet-white-orange
  23. 2
  24. brown-black-red
  25. blue-yellow-orange
  26. 9100
  27. 6
  28. orange-brown-red
  29. 6.9
  30. 610
  31. 820
  32. 3
  33. 7
  34. 220
  35. 29000
  36. white-green-black
  37. 78
  38. 10
  39. 38
  40. red-red-red

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