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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 233 · 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 resistor has the colour bands red, orange, red. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does grey stand for?
  8. 8.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) grey-orange-brown (b) orange-grey-brown (c) orange-grey-red (d) orange-grey-black
  11. 11.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-black (b) yellow-blue-brown (c) blue-yellow-red (d) blue-yellow-brown
  14. 14.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-brown (b) red-white-red (c) white-red-red (d) white-red-orange
  17. 17.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-red-black (c) brown-brown-black (d) brown-brown-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-brown (b) green-brown-black (c) brown-green-black (d) blue-brown-black
  23. 23.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-red (b) white-brown-yellow (c) brown-white-orange (d) white-brown-orange
  30. 30.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) orange-green-black (b) red-green-brown (c) green-red-black (d) red-green-black
  37. 37.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?

Answer key

  1. 2300
  2. 5 %
  3. the one nearest an end
  4. 0
  5. 53
  6. 87
  7. 8
  8. 5.3
  9. 1
  10. orange-grey-brown
  11. 320
  12. 260
  13. blue-yellow-brown
  14. 1.3
  15. 3
  16. white-red-red
  17. 880
  18. 5.9
  19. 86000
  20. 2
  21. brown-brown-black
  22. green-brown-black
  23. 4.2
  24. 7400
  25. 19000
  26. 57
  27. 1100
  28. 2
  29. white-brown-orange
  30. 150
  31. 34
  32. 4000
  33. 5
  34. 92
  35. 27
  36. red-green-black
  37. 420
  38. 9.9
  39. 96000
  40. 9700

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