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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 846 · 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) 5 % (b) 0 % (c) 25 % (d) 50 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-red (b) white-black-brown (c) white-white-black (d) white-white-brown
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-orange (b) brown-orange-red (c) brown-orange-yellow (d) orange-brown-orange
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) yellow-green-black (b) green-yellow-brown (c) green-yellow-black (d) blue-yellow-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) grey-violet-brown (b) violet-grey-brown (c) violet-grey-red (d) violet-grey-black
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-black (b) brown-violet-red (c) violet-brown-brown (d) brown-violet-brown
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) brown-blue-black (c) white-blue-brown (d) white-blue-black
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-yellow (b) white-orange-red (c) white-orange-orange (d) orange-white-orange
  15. 15.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) grey-yellow-brown (b) yellow-grey-brown (c) grey-yellow-red (d) grey-yellow-black
  21. 21.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-red (b) brown-grey-red (c) grey-brown-brown (d) grey-brown-orange
  23. 23.🌈 In the resistor colour code, which number does violet stand for?
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-black (b) brown-red-brown (c) red-brown-black (d) red-red-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) red-orange-black (b) orange-red-black (c) yellow-red-black (d) orange-red-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) orange-red-red (c) red-orange-red (d) orange-red-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-red (b) red-grey-orange (c) grey-red-orange (d) grey-red-yellow
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-orange (b) white-black-red (c) brown-white-red (d) white-black-brown
  30. 30.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  33. 33.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) red-green-orange (b) green-red-red (c) green-red-yellow (d) green-red-orange
  40. 40.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. white-white-brown
  3. brown-orange-orange
  4. green-yellow-black
  5. violet-grey-brown
  6. brown-violet-brown
  7. 9
  8. 8
  9. 6
  10. 6200
  11. 3
  12. 14
  13. white-blue-black
  14. white-orange-orange
  15. 1800
  16. 44000
  17. 700
  18. 6000
  19. 890
  20. grey-yellow-brown
  21. 52
  22. grey-brown-red
  23. 7
  24. 5
  25. brown-red-black
  26. orange-red-black
  27. orange-red-red
  28. grey-red-orange
  29. white-black-red
  30. 70000
  31. 0
  32. the one nearest an end
  33. 43
  34. 50
  35. 6.8
  36. 1300
  37. 3300
  38. 250
  39. green-red-orange
  40. 360

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