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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 437 · 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 orange stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-red (b) violet-red-orange (c) violet-red-brown (d) red-violet-red
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-black (b) green-brown-black (c) brown-green-brown (d) red-green-black
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-orange (b) red-blue-orange (c) blue-red-red (d) blue-red-yellow
  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.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does blue stand for?
  11. 11.🌈 A resistor has the colour bands green, grey, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) green-grey-black (c) green-grey-brown (d) grey-green-brown
  13. 13.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  18. 18.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-black (b) white-blue-black (c) grey-blue-brown (d) blue-grey-black
  20. 20.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-red-brown (c) brown-brown-black (d) brown-brown-brown
  22. 22.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4100 Ω resistor? (a) yellow-brown-red (b) yellow-brown-orange (c) yellow-brown-brown (d) brown-yellow-red
  24. 24.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-red (b) blue-orange-red (c) orange-blue-orange (d) orange-blue-brown
  26. 26.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-brown (b) grey-black-black (c) grey-violet-black (d) violet-black-black
  30. 30.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-black (b) violet-orange-brown (c) orange-violet-red (d) orange-violet-brown
  32. 32.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) brown-grey-red (b) grey-brown-brown (c) grey-brown-orange (d) grey-brown-red
  36. 36.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-brown (b) red-white-black (c) red-white-red (d) white-red-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-red (b) blue-blue-orange (c) blue-blue-yellow (d) blue-violet-orange

Answer key

  1. 3
  2. violet-red-red
  3. 0
  4. 1
  5. brown-green-black
  6. blue-red-orange
  7. the one nearest an end
  8. 8
  9. 710
  10. 6
  11. 580
  12. green-grey-brown
  13. 33000
  14. 840
  15. 2
  16. 41000
  17. 5 %
  18. 180
  19. grey-blue-black
  20. 81
  21. brown-brown-brown
  22. 3000
  23. yellow-brown-red
  24. 230
  25. orange-blue-red
  26. 7300
  27. 24
  28. 39
  29. violet-black-black
  30. 4600
  31. orange-violet-brown
  32. 80000
  33. 7
  34. 4.3
  35. grey-brown-red
  36. 97
  37. 470
  38. 820
  39. red-white-brown
  40. blue-blue-orange

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