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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 434 · 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 420 Ω resistor? (a) yellow-red-black (b) red-yellow-brown (c) yellow-red-brown (d) yellow-red-red
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) blue-brown-brown (c) brown-blue-red (d) blue-brown-red
  3. 3.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) blue-violet-orange (b) violet-blue-yellow (c) violet-blue-red (d) violet-blue-orange
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  6. 6.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-brown (c) brown-blue-orange (d) brown-blue-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-black (b) green-blue-brown (c) blue-green-red (d) blue-green-brown
  9. 9.🌈 In the resistor colour code, which number does yellow stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) violet-grey-black (b) grey-blue-black (c) blue-grey-brown (d) blue-grey-black
  11. 11.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  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 orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) yellow-orange-brown (b) orange-yellow-red (c) orange-yellow-black (d) orange-yellow-brown
  22. 22.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) green-yellow-brown (b) yellow-black-red (c) yellow-black-brown (d) yellow-black-black
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 790 Ω resistor? (a) white-violet-brown (b) violet-white-red (c) violet-white-brown (d) violet-white-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-brown (b) red-white-red (c) white-red-brown (d) red-white-black
  28. 28.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  32. 32.🌈 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
  33. 33.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?

Answer key

  1. yellow-red-brown
  2. blue-brown-red
  3. 5800
  4. violet-blue-orange
  5. the one nearest an end
  6. 6.6
  7. brown-blue-red
  8. blue-green-brown
  9. 4
  10. blue-grey-black
  11. 9700
  12. 0
  13. 5 %
  14. 9
  15. 88000
  16. 6
  17. 2
  18. 270
  19. 310
  20. 38
  21. orange-yellow-brown
  22. 87
  23. yellow-black-brown
  24. 3
  25. 430
  26. violet-white-brown
  27. red-white-brown
  28. 510
  29. 33
  30. 4.1
  31. 770
  32. brown-red-black
  33. 800
  34. 8000
  35. 330
  36. 8.5
  37. 54000
  38. 3.9
  39. 35
  40. 700

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