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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 359 · 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 yellow stand for?
  2. 2.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) blue-brown-brown (c) blue-brown-red (d) brown-blue-red
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  7. 7.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 In the resistor colour code, which number does red stand for?
  12. 12.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) red-yellow-red (b) red-yellow-black (c) red-yellow-brown (d) yellow-red-brown
  15. 15.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  19. 19.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-yellow-red (b) yellow-green-brown (c) yellow-yellow-black (d) yellow-yellow-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) red-orange-black (b) red-orange-brown (c) orange-orange-black (d) orange-red-black
  23. 23.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, yellow, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) grey-green-red (b) green-grey-brown (c) green-grey-orange (d) green-grey-red
  31. 31.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) violet-blue-red (b) blue-black-orange (c) blue-black-red (d) blue-black-brown
  34. 34.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) blue-brown-black (b) red-blue-black (c) brown-blue-brown (d) brown-blue-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) brown-red-black (b) orange-brown-black (c) red-brown-brown (d) red-brown-black
  37. 37.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-brown (b) red-violet-orange (c) violet-red-red (d) red-violet-red
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-black (b) yellow-black-red (c) yellow-black-brown (d) green-yellow-brown
  40. 40.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 4
  2. 42
  3. 800
  4. 2.4
  5. blue-brown-red
  6. 5 %
  7. 60
  8. 5
  9. 38000
  10. 9
  11. 2
  12. 350
  13. 0
  14. red-yellow-brown
  15. 2.7
  16. 39
  17. 5
  18. the one nearest an end
  19. 7.2
  20. 850
  21. yellow-yellow-brown
  22. red-orange-black
  23. 580
  24. 35
  25. 480
  26. 170
  27. 39
  28. 440
  29. 12000
  30. green-grey-red
  31. 29
  32. 96
  33. blue-black-red
  34. 5700
  35. brown-blue-black
  36. red-brown-black
  37. 22
  38. red-violet-red
  39. yellow-black-brown
  40. 960

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