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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 443 · 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 gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  3. 3.🌈 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
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-orange-brown (b) red-red-brown (c) red-red-red (d) red-red-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-red-black (b) red-brown-black (c) brown-brown-black (d) brown-brown-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-red (b) brown-yellow-orange (c) yellow-brown-yellow (d) yellow-brown-orange
  7. 7.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-red-black (b) brown-red-black (c) brown-red-brown (d) red-brown-black
  9. 9.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) violet-red-red (b) red-violet-red (c) red-violet-orange (d) red-violet-brown
  12. 12.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-black (b) violet-grey-red (c) violet-grey-brown (d) grey-violet-brown
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-orange (b) blue-green-red (c) green-black-red (d) green-black-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-red (c) orange-green-yellow (d) orange-green-orange
  24. 24.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) blue-white-black (b) green-white-brown (c) white-green-black (d) green-white-black
  26. 26.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does white stand for?
  28. 28.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-red (b) grey-orange-brown (c) orange-grey-brown (d) orange-grey-black
  30. 30.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) red-grey-red (b) grey-red-brown (c) grey-red-orange (d) grey-red-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-brown (b) violet-blue-red (c) violet-blue-orange (d) blue-violet-red
  36. 36.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-green-red (b) yellow-yellow-red (c) yellow-yellow-orange (d) yellow-yellow-brown
  38. 38.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 4
  2. 5 %
  3. the one nearest an end
  4. red-red-brown
  5. brown-brown-black
  6. yellow-brown-orange
  7. 850
  8. brown-red-black
  9. 2
  10. 5.7
  11. red-violet-red
  12. 8700
  13. 2
  14. violet-grey-brown
  15. 7
  16. 760
  17. 110
  18. 270
  19. 550
  20. 380
  21. 4.8
  22. green-black-red
  23. orange-green-orange
  24. 93
  25. green-white-black
  26. 46000
  27. 9
  28. 4.7
  29. orange-grey-brown
  30. 5.8
  31. 2.1
  32. 12
  33. 66
  34. grey-red-red
  35. violet-blue-red
  36. 840
  37. yellow-yellow-red
  38. 37
  39. 5100
  40. 67

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