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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 620 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) white-red-black (c) red-white-black (d) white-red-brown
  4. 4.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-red (c) red-yellow-brown (d) red-yellow-black
  8. 8.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 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
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-red (b) orange-yellow-red (c) orange-orange-orange (d) orange-orange-brown
  12. 12.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-red (b) white-blue-brown (c) blue-white-brown (d) white-blue-black
  15. 15.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 In the resistor colour code, which number does grey stand for?
  21. 21.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) green-orange-black (d) yellow-orange-black
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-orange (b) brown-brown-red (c) brown-brown-yellow (d) brown-red-orange
  33. 33.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 1
  3. white-red-black
  4. 680
  5. 4400
  6. 94
  7. red-yellow-brown
  8. 2.1
  9. the one nearest an end
  10. 3
  11. orange-orange-red
  12. 160
  13. 1400
  14. white-blue-brown
  15. 12
  16. 12
  17. 30
  18. 54
  19. 5
  20. 8
  21. 92
  22. 8.6
  23. 2
  24. 360
  25. 16
  26. 97
  27. 40
  28. 11
  29. yellow-orange-black
  30. 4
  31. 9100
  32. brown-brown-orange
  33. 90000
  34. 47
  35. 23
  36. 36
  37. 87
  38. 77
  39. 4.2
  40. 100

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