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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 793 · 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) 5 % (b) 0 % (c) 50 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1700 Ω resistor? (a) brown-violet-red (b) brown-violet-orange (c) violet-brown-red (d) brown-violet-brown
  5. 5.🌈 In the resistor colour code, which number does orange stand for?
  6. 6.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) green-yellow-brown (b) green-yellow-black (c) blue-yellow-black (d) yellow-green-black
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-brown (b) violet-grey-red (c) violet-violet-red (d) violet-violet-orange
  10. 10.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) violet-yellow-red (b) violet-yellow-brown (c) yellow-violet-brown (d) violet-yellow-black
  16. 16.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) violet-white-brown (b) violet-white-black (c) white-violet-black (d) grey-white-black
  22. 22.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does grey stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-orange (b) red-violet-red (c) violet-red-orange (d) red-violet-yellow
  27. 27.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  32. 32.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) blue-yellow-orange (b) yellow-blue-yellow (c) yellow-blue-orange (d) yellow-blue-red
  40. 40.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 900
  3. 4000
  4. brown-violet-red
  5. 3
  6. 27
  7. 1000
  8. green-yellow-black
  9. violet-violet-red
  10. 21000
  11. 600
  12. 8300
  13. 53
  14. 89
  15. violet-yellow-brown
  16. 5
  17. 49
  18. 3100
  19. 99
  20. 65
  21. violet-white-black
  22. 2.3
  23. 13
  24. 99000
  25. 8
  26. red-violet-orange
  27. 610
  28. 260
  29. 23
  30. 4
  31. the one nearest an end
  32. 30
  33. 33
  34. 4.7
  35. 86
  36. 2.8
  37. 21
  38. 97
  39. yellow-blue-orange
  40. 110

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