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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 935 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  5. 5.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-black (b) blue-white-brown (c) white-blue-brown (d) blue-white-red
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-red (b) violet-grey-red (c) violet-violet-orange (d) violet-violet-brown
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 In the resistor colour code, which number does black stand for?
  10. 10.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, grey, 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 green, white, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-red (b) white-white-orange (c) white-black-orange (d) white-white-yellow
  17. 17.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) grey-blue-orange (b) blue-grey-red (c) blue-grey-orange (d) blue-grey-yellow
  22. 22.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-brown (b) orange-orange-red (c) orange-orange-orange (d) orange-yellow-red
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) blue-grey-brown (b) blue-grey-orange (c) blue-grey-red (d) grey-blue-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-red (b) green-violet-yellow (c) violet-green-orange (d) green-violet-orange
  26. 26.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) red-brown-brown (b) brown-red-red (c) brown-red-brown (d) brown-red-black
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65000 Ω resistor? (a) green-blue-orange (b) blue-green-yellow (c) blue-green-red (d) blue-green-orange
  35. 35.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-red (b) blue-white-orange (c) white-blue-yellow (d) white-blue-orange
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 1
  3. 680
  4. 900
  5. the one nearest an end
  6. blue-white-brown
  7. violet-violet-red
  8. 3
  9. 0
  10. 940
  11. 19000
  12. 1.8
  13. 8
  14. 5.9
  15. 230
  16. white-white-orange
  17. 4.2
  18. 4
  19. 320
  20. 1500
  21. blue-grey-orange
  22. 840
  23. orange-orange-red
  24. blue-grey-red
  25. green-violet-orange
  26. 4200
  27. 95
  28. 31
  29. brown-red-brown
  30. 6
  31. 1800
  32. 87000
  33. 57
  34. blue-green-orange
  35. 340
  36. 170
  37. 3
  38. white-blue-orange
  39. 9
  40. 88000

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