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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 256 · 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.🌈 In the resistor colour code, which number does violet stand for?
  2. 2.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  5. 5.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  14. 14.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-orange (b) green-brown-red (c) brown-green-orange (d) green-brown-yellow
  16. 16.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) green-blue-black (b) yellow-blue-brown (c) blue-yellow-black (d) yellow-blue-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-brown (b) green-yellow-red (c) green-yellow-orange (d) yellow-green-red
  20. 20.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) brown-grey-red (b) grey-brown-red (c) grey-brown-orange (d) grey-brown-brown
  30. 30.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) orange-brown-black (b) brown-orange-black (c) red-orange-black (d) brown-orange-brown
  33. 33.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 7
  2. 8300
  3. 9
  4. the one nearest an end
  5. 100
  6. 43000
  7. 41
  8. 2
  9. 3
  10. 9.4
  11. 6.3
  12. 420
  13. 5 %
  14. 860
  15. green-brown-orange
  16. 14
  17. 94
  18. yellow-blue-black
  19. green-yellow-red
  20. 9.1
  21. 8
  22. 41000
  23. 3500
  24. 1
  25. 51
  26. 44
  27. 46000
  28. 0
  29. grey-brown-red
  30. 32
  31. 79
  32. brown-orange-black
  33. 42000
  34. 81000
  35. 900
  36. 72
  37. 5.3
  38. 600
  39. 7.2
  40. 6.5

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