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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 336 · 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) 50 % (c) 25 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) orange-white-orange (c) white-orange-yellow (d) white-orange-orange
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-black-black (b) yellow-orange-black (c) orange-black-brown (d) orange-black-black
  7. 7.🌈 In the resistor colour code, which number does green stand for?
  8. 8.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  9. 9.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does black stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-red (b) blue-brown-brown (c) brown-blue-brown (d) blue-brown-black
  12. 12.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-brown (b) grey-brown-black (c) red-grey-black (d) brown-grey-black
  16. 16.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does yellow stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-brown (b) brown-green-orange (c) green-brown-red (d) brown-green-red
  19. 19.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) violet-brown-brown (c) brown-violet-black (d) brown-violet-brown
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-yellow (b) brown-black-red (c) brown-black-orange (d) red-brown-orange
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-red (b) green-grey-yellow (c) green-grey-orange (d) grey-green-orange
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) orange-blue-black (b) orange-blue-brown (c) blue-orange-black (d) yellow-blue-black
  36. 36.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) green-brown-black (c) brown-yellow-black (d) yellow-brown-black
  38. 38.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-orange (b) violet-red-red (c) violet-red-brown (d) red-violet-red
  40. 40.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 180
  3. 3
  4. white-orange-orange
  5. 7
  6. orange-black-black
  7. 5
  8. the one nearest an end
  9. 1000
  10. 0
  11. blue-brown-brown
  12. 620
  13. 43
  14. 1
  15. brown-grey-black
  16. 570
  17. 4
  18. brown-green-red
  19. 78
  20. 7.6
  21. 880
  22. 46
  23. brown-violet-brown
  24. 9
  25. 240
  26. 90
  27. 93
  28. 6.2
  29. 1.2
  30. 6
  31. 35
  32. 530
  33. brown-black-orange
  34. green-grey-orange
  35. orange-blue-black
  36. 6.6
  37. yellow-brown-black
  38. 2700
  39. violet-red-red
  40. 14

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