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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 457 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-brown (b) red-brown-red (c) brown-red-orange (d) brown-red-red
  2. 2.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 50 % (d) 25 %
  7. 7.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, brown, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-orange (b) grey-brown-red (c) brown-grey-red (d) grey-brown-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) violet-brown-brown (b) violet-brown-orange (c) violet-brown-red (d) brown-violet-red
  13. 13.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  14. 14.🌈 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
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-orange (b) orange-violet-brown (c) orange-violet-red (d) violet-orange-red
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does white stand for?
  27. 27.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-brown (b) brown-grey-black (c) grey-brown-black (d) red-grey-black
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-green-orange (b) yellow-yellow-orange (c) yellow-yellow-yellow (d) yellow-yellow-red
  36. 36.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-grey-red (b) grey-grey-black (c) grey-grey-brown (d) grey-white-brown
  39. 39.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?

Answer key

  1. brown-red-red
  2. 4800
  3. 960
  4. 92
  5. 31
  6. 5 %
  7. 47000
  8. 4100
  9. 1
  10. 370
  11. grey-brown-red
  12. violet-brown-red
  13. 13
  14. the one nearest an end
  15. orange-violet-red
  16. 0
  17. 3
  18. 77
  19. 44
  20. 820
  21. 5.3
  22. 46
  23. 28
  24. 5.8
  25. 5.5
  26. 9
  27. 8.6
  28. 14
  29. 45
  30. 6
  31. 1.7
  32. 25
  33. 8
  34. brown-grey-black
  35. yellow-yellow-orange
  36. 1.4
  37. 9.4
  38. grey-grey-brown
  39. 71
  40. 20

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