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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 166 · 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) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53000 Ω resistor? (a) green-orange-orange (b) orange-green-orange (c) green-orange-yellow (d) green-orange-red
  3. 3.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) yellow-orange-black (c) orange-orange-brown (d) orange-orange-black
  7. 7.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-brown (c) grey-yellow-red (d) grey-yellow-black
  19. 19.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does red stand for?
  26. 26.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, white, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) grey-white-red (b) white-grey-orange (c) white-grey-brown (d) white-grey-red
  34. 34.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-brown (b) blue-green-red (c) green-blue-red (d) blue-green-orange
  38. 38.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) grey-blue-black (b) blue-grey-black (c) violet-grey-black (d) blue-grey-brown
  40. 40.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. green-orange-orange
  3. 2200
  4. 5 %
  5. 11
  6. orange-orange-black
  7. 5.1
  8. 580
  9. 4
  10. 8.7
  11. 39
  12. 21000
  13. 4
  14. 5
  15. 3
  16. 7
  17. 7
  18. grey-yellow-brown
  19. 540
  20. 1.3
  21. 6
  22. 410
  23. 42
  24. 74
  25. 2
  26. 23000
  27. 40
  28. 250
  29. 49
  30. 640
  31. 7200
  32. 10
  33. white-grey-red
  34. 55
  35. 920
  36. 57
  37. blue-green-red
  38. 360
  39. blue-grey-black
  40. 2.3

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