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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 68 · 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 green, brown, red. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does violet stand for?
  3. 3.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) brown-violet-brown (c) violet-brown-brown (d) brown-violet-black
  7. 7.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  8. 8.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-black (b) brown-blue-black (c) white-blue-brown (d) blue-white-black
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) green-black-brown (b) blue-black-black (c) green-black-black (d) blue-green-black
  12. 12.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  18. 18.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does black stand for?
  28. 28.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) blue-orange-black (b) orange-blue-brown (c) blue-orange-brown (d) blue-orange-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) yellow-yellow-black (b) orange-yellow-brown (c) orange-yellow-black (d) yellow-orange-black
  32. 32.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-yellow (b) brown-brown-red (c) brown-red-orange (d) brown-brown-orange
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) blue-red-red (b) red-blue-brown (c) red-blue-red (d) red-blue-orange
  39. 39.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?

Answer key

  1. 5100
  2. 7
  3. 32
  4. 33000
  5. 91
  6. brown-violet-brown
  7. the one nearest an end
  8. 950
  9. 9.2
  10. white-blue-black
  11. green-black-black
  12. 1
  13. 17
  14. 3100
  15. 9
  16. 300
  17. 5 %
  18. 4600
  19. 1.4
  20. 24
  21. 52000
  22. 95000
  23. 86
  24. 1
  25. 48000
  26. 50
  27. 0
  28. 7.9
  29. 260
  30. blue-orange-brown
  31. orange-yellow-black
  32. 210
  33. 790
  34. 7.4
  35. 5.2
  36. 85
  37. brown-brown-orange
  38. red-blue-red
  39. 70000
  40. 680

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