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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 59 · 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) 50 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  9. 9.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does green stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) red-white-black (c) white-red-brown (d) white-red-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) white-brown-brown (b) brown-white-black (c) brown-white-red (d) brown-white-brown
  13. 13.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does white stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) white-orange-black (c) brown-orange-black (d) orange-white-black
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) red-brown-brown (b) brown-black-brown (c) brown-black-black (d) brown-black-red
  26. 26.🌈 In the resistor colour code, which number does grey stand for?
  27. 27.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-black (b) orange-brown-red (c) orange-brown-brown (d) brown-orange-brown
  32. 32.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 3.2
  3. 91
  4. 0
  5. 40
  6. 1.9
  7. 88000
  8. the one nearest an end
  9. 720
  10. 5
  11. white-red-black
  12. brown-white-brown
  13. 9.3
  14. 30000
  15. 120
  16. 5.1
  17. 370
  18. 37
  19. 3
  20. 9
  21. white-orange-black
  22. 1
  23. 2.5
  24. 26
  25. brown-black-brown
  26. 8
  27. 8500
  28. 960
  29. 15000
  30. 2
  31. orange-brown-brown
  32. 48000
  33. 51
  34. 4
  35. 2.8
  36. 370
  37. 50
  38. 49
  39. 20
  40. 12000

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