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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 333 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) green-brown-brown (b) brown-green-brown (c) brown-green-red (d) brown-green-black
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-brown-black (c) red-black-black (d) brown-black-black
  5. 5.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-red (b) blue-yellow-yellow (c) blue-yellow-orange (d) yellow-blue-orange
  10. 10.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, yellow, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-red (b) yellow-blue-red (c) blue-yellow-orange (d) blue-yellow-brown
  17. 17.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) red-grey-orange (c) grey-red-red (d) grey-red-orange
  20. 20.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) orange-orange-black (c) orange-orange-brown (d) yellow-orange-black
  22. 22.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-brown (b) green-grey-black (c) grey-green-black (d) white-green-black
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) yellow-black-orange (c) green-yellow-orange (d) yellow-black-red
  30. 30.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  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 violet, green, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) blue-black-brown (d) violet-blue-red
  35. 35.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does white stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-red (b) orange-yellow-red (c) orange-orange-orange (d) orange-orange-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-black (b) orange-yellow-red (c) yellow-orange-brown (d) orange-yellow-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-yellow (c) orange-green-red (d) orange-green-orange

Answer key

  1. 4
  2. brown-green-brown
  3. 5 %
  4. brown-black-black
  5. 19
  6. 90
  7. 260
  8. 6
  9. blue-yellow-orange
  10. 110
  11. 2400
  12. 3.3
  13. 8
  14. 970
  15. 9.3
  16. blue-yellow-red
  17. the one nearest an end
  18. 7
  19. grey-red-orange
  20. 7600
  21. orange-orange-black
  22. 22000
  23. 1
  24. 1700
  25. 7700
  26. 58
  27. grey-green-black
  28. 2
  29. yellow-black-orange
  30. 2.5
  31. 23000
  32. 12
  33. 7.5
  34. blue-black-red
  35. 31000
  36. 80
  37. 9
  38. orange-orange-red
  39. orange-yellow-brown
  40. orange-green-orange

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