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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 563 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) brown-orange-black (b) white-orange-black (c) white-orange-brown (d) orange-white-black
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) brown-blue-brown (b) blue-brown-black (c) red-blue-black (d) brown-blue-black
  8. 8.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-red (b) violet-orange-orange (c) violet-orange-yellow (d) orange-violet-orange
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) green-orange-brown (c) orange-green-red (d) green-orange-red
  12. 12.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 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
  15. 15.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-black (b) violet-grey-red (c) grey-violet-brown (d) violet-grey-brown
  17. 17.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) brown-grey-orange (b) grey-brown-yellow (c) grey-brown-red (d) grey-brown-orange
  23. 23.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) white-brown-brown (b) brown-white-brown (c) brown-white-black (d) brown-white-red
  28. 28.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does yellow stand for?
  33. 33.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) brown-violet-red (b) violet-brown-red (c) violet-brown-orange (d) violet-brown-brown
  35. 35.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-red (b) green-red-orange (c) red-green-orange (d) red-green-yellow
  39. 39.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does black stand for?

Answer key

  1. white-orange-black
  2. 5 %
  3. 82
  4. 700
  5. 1
  6. 5200
  7. brown-blue-black
  8. 780
  9. 320
  10. violet-orange-orange
  11. green-orange-red
  12. 700
  13. 8.6
  14. the one nearest an end
  15. 830
  16. violet-grey-brown
  17. 27000
  18. 8
  19. 110
  20. 43
  21. 71
  22. grey-brown-orange
  23. 1500
  24. 720
  25. 800
  26. 380
  27. brown-white-brown
  28. 28000
  29. 87
  30. 7700
  31. 35
  32. 4
  33. 20000
  34. violet-brown-red
  35. 730
  36. 2800
  37. 950
  38. red-green-orange
  39. 55
  40. 0

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