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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 452 · 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 grey stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) white-red-yellow (b) red-white-orange (c) white-red-red (d) white-red-orange
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-black (b) green-yellow-brown (c) yellow-green-brown (d) yellow-green-red
  6. 6.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) yellow-red-brown (b) green-red-black (c) red-yellow-black (d) yellow-red-black
  8. 8.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) grey-red-red (c) grey-red-orange (d) red-grey-orange
  13. 13.🌈 A resistor has the colour bands green, green, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does white stand for?
  20. 20.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-violet-black (b) violet-grey-black (c) grey-violet-black (d) violet-violet-brown
  22. 22.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) red-green-red (b) green-red-orange (c) green-red-brown (d) green-red-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-red (b) violet-grey-yellow (c) violet-grey-orange (d) grey-violet-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) yellow-grey-yellow (b) yellow-grey-orange (c) yellow-grey-red (d) grey-yellow-orange
  28. 28.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, orange, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 In the resistor colour code, which number does yellow stand for?
  36. 36.🌈 In the resistor colour code, which number does blue stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-brown (c) violet-orange-orange (d) violet-orange-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) brown-blue-red (c) brown-blue-yellow (d) blue-brown-orange
  39. 39.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 8
  2. white-red-orange
  3. 5 %
  4. the one nearest an end
  5. yellow-green-brown
  6. 6200
  7. yellow-red-black
  8. 2000
  9. 46
  10. 1
  11. 8.3
  12. grey-red-orange
  13. 55000
  14. 1.3
  15. 19
  16. 0
  17. 38
  18. 720
  19. 9
  20. 4000
  21. violet-violet-black
  22. 7300
  23. 5.1
  24. 550
  25. green-red-red
  26. violet-grey-orange
  27. yellow-grey-orange
  28. 5.8
  29. 400
  30. 2
  31. 5.2
  32. 6300
  33. 96000
  34. 7
  35. 4
  36. 6
  37. violet-orange-red
  38. brown-blue-orange
  39. 3.9
  40. 54

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