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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 344 · 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 band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 25 % (d) 50 %
  5. 5.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-brown (b) orange-black-red (c) orange-black-black (d) yellow-orange-brown
  16. 16.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-brown (b) orange-brown-red (c) orange-brown-black (d) brown-orange-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) yellow-violet-black (b) orange-violet-brown (c) violet-orange-black (d) orange-violet-black
  22. 22.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) brown-blue-black (c) white-blue-black (d) white-blue-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-blue-brown (b) green-green-red (c) green-green-black (d) green-green-brown
  25. 25.🌈 In the resistor colour code, which number does orange stand for?
  26. 26.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) yellow-orange-orange (b) orange-yellow-yellow (c) orange-yellow-red (d) orange-yellow-orange
  30. 30.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-red (b) blue-violet-brown (c) blue-blue-black (d) blue-blue-brown
  32. 32.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-black (b) yellow-green-red (c) green-yellow-brown (d) yellow-green-brown
  34. 34.🌈 A resistor has the colour bands blue, blue, brown. 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 90 Ω resistor? (a) brown-white-black (b) white-black-black (c) brown-black-black (d) white-black-brown
  37. 37.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 4
  3. 2
  4. 5 %
  5. 2700
  6. 82
  7. 48
  8. 2.2
  9. 250
  10. 79
  11. 6800
  12. 6
  13. 11
  14. 660
  15. orange-black-brown
  16. 360
  17. 220
  18. 9
  19. 29000
  20. orange-brown-brown
  21. orange-violet-black
  22. 9.2
  23. white-blue-black
  24. green-green-brown
  25. 3
  26. 34
  27. 910
  28. 31
  29. orange-yellow-orange
  30. 63
  31. blue-blue-brown
  32. 1.7
  33. yellow-green-brown
  34. 660
  35. 27
  36. white-black-black
  37. 530
  38. 1
  39. 30
  40. 8700

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