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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 313 · 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) 50 % (b) 0 % (c) 5 % (d) 25 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) red-black-black (b) red-black-brown (c) orange-red-black (d) orange-black-black
  3. 3.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  7. 7.🌈 In the resistor colour code, which number does green stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) green-white-black (b) white-yellow-black (c) yellow-white-brown (d) yellow-white-black
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-yellow (b) violet-orange-orange (c) orange-violet-red (d) orange-violet-orange
  21. 21.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) red-blue-orange (b) blue-red-red (c) blue-red-yellow (d) blue-red-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) grey-grey-black (b) grey-violet-black (c) violet-grey-black (d) violet-grey-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) red-black-red (c) red-black-brown (d) orange-red-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-brown (c) white-grey-black (d) brown-grey-black
  30. 30.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) violet-brown-black (b) brown-violet-brown (c) brown-violet-black (d) red-violet-black
  33. 33.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) blue-red-black (b) red-blue-black (c) red-blue-brown (d) orange-blue-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-black (b) grey-orange-brown (c) orange-grey-brown (d) orange-grey-red
  37. 37.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) grey-violet-orange (b) violet-black-red (c) violet-black-yellow (d) violet-black-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) orange-white-black (b) white-orange-brown (c) orange-white-red (d) orange-white-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) brown-blue-red (b) blue-brown-orange (c) blue-brown-red (d) blue-brown-brown

Answer key

  1. 5 %
  2. red-black-black
  3. 5700
  4. 1
  5. 2
  6. the one nearest an end
  7. 5
  8. yellow-white-black
  9. 8
  10. 6200
  11. 2.9
  12. 5.5
  13. 0
  14. 6400
  15. 2300
  16. 1.1
  17. 58
  18. 370
  19. 7400
  20. orange-violet-orange
  21. 93
  22. 97
  23. 47
  24. 38000
  25. 98
  26. blue-red-orange
  27. violet-grey-black
  28. red-black-red
  29. white-grey-black
  30. 2.6
  31. 72
  32. brown-violet-black
  33. 62
  34. 4000
  35. red-blue-black
  36. orange-grey-brown
  37. 72
  38. violet-black-orange
  39. orange-white-brown
  40. blue-brown-red

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