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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 937 · 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 600 Ω resistor? (a) violet-blue-brown (b) blue-black-black (c) blue-black-brown (d) blue-black-red
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  4. 4.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-orange (b) violet-brown-orange (c) brown-violet-yellow (d) brown-violet-red
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-red (b) orange-blue-black (c) blue-orange-brown (d) orange-blue-brown
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) grey-white-black (b) white-grey-black (c) brown-grey-black (d) white-grey-brown
  12. 12.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does white stand for?
  16. 16.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does blue stand for?
  21. 21.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-brown (b) orange-grey-black (c) orange-grey-red (d) grey-orange-brown
  23. 23.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) yellow-brown-black (c) orange-brown-black (d) orange-brown-brown
  25. 25.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-orange (b) yellow-black-red (c) yellow-black-yellow (d) green-yellow-orange
  34. 34.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-brown (b) yellow-yellow-orange (c) yellow-green-red (d) yellow-yellow-red
  36. 36.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-red (c) violet-orange-orange (d) violet-orange-brown

Answer key

  1. blue-black-brown
  2. 5 %
  3. the one nearest an end
  4. 5200
  5. brown-violet-orange
  6. 7
  7. orange-blue-brown
  8. 3
  9. 790
  10. 22
  11. white-grey-black
  12. 790
  13. 30
  14. 460
  15. 9
  16. 95
  17. 6.9
  18. 5.5
  19. 560
  20. 6
  21. 9900
  22. orange-grey-brown
  23. 23000
  24. orange-brown-black
  25. 230
  26. 82000
  27. 17
  28. 67
  29. 45
  30. 38
  31. 42000
  32. 51
  33. yellow-black-orange
  34. 520
  35. yellow-yellow-red
  36. 880
  37. 8.8
  38. 4
  39. 220
  40. violet-orange-red

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