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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 42 · 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 brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  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, black, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  7. 7.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  8. 8.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-brown (b) green-brown-red (c) brown-green-orange (d) brown-green-red
  10. 10.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does white stand for?
  13. 13.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-black (b) red-violet-red (c) red-violet-brown (d) violet-red-brown
  22. 22.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does yellow stand for?
  24. 24.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-orange (b) red-green-red (c) green-red-red (d) green-red-brown
  28. 28.🌈 In the resistor colour code, which number does orange stand for?
  29. 29.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) blue-green-black (b) green-green-brown (c) green-blue-black (d) green-green-black
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) orange-grey-orange (b) grey-orange-orange (c) grey-orange-yellow (d) grey-orange-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) grey-red-orange (c) red-grey-orange (d) grey-red-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) grey-violet-black (b) violet-black-brown (c) violet-black-black (d) grey-black-black
  37. 37.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 11
  2. 97000
  3. 1
  4. 5 %
  5. 1000
  6. 8400
  7. the one nearest an end
  8. 19000
  9. brown-green-red
  10. 35
  11. 840
  12. 9
  13. 4.2
  14. 360
  15. 650
  16. 62
  17. 78000
  18. 40
  19. 5.8
  20. 0
  21. red-violet-brown
  22. 630
  23. 4
  24. 10000
  25. 7
  26. 900
  27. green-red-red
  28. 3
  29. 7.9
  30. 2
  31. 1.5
  32. 58
  33. green-green-black
  34. grey-orange-orange
  35. grey-red-orange
  36. violet-black-black
  37. 55000
  38. 39
  39. 750
  40. 64

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