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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 764 · 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 resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 0 % (d) 25 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) red-black-red (c) red-black-brown (d) orange-red-brown
  4. 4.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-red (b) brown-grey-red (c) grey-brown-orange (d) grey-brown-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) green-orange-brown (c) blue-orange-black (d) green-orange-black
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  9. 9.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-red (b) brown-red-red (c) brown-brown-orange (d) brown-brown-brown
  13. 13.🌈 In the resistor colour code, which number does orange stand for?
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70000 Ω resistor? (a) violet-black-orange (b) violet-black-yellow (c) violet-black-red (d) grey-violet-orange
  24. 24.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) white-yellow-orange (b) yellow-white-red (c) yellow-white-orange (d) yellow-white-yellow
  28. 28.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-brown (b) blue-red-brown (c) red-blue-black (d) red-blue-red
  35. 35.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) orange-blue-brown (c) orange-blue-black (d) blue-orange-black
  37. 37.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-brown (b) yellow-orange-black (c) yellow-black-black (d) orange-black-black

Answer key

  1. 34
  2. 5 %
  3. red-black-brown
  4. 670
  5. 2
  6. grey-brown-red
  7. green-orange-black
  8. the one nearest an end
  9. 840
  10. 310
  11. 77
  12. brown-brown-red
  13. 3
  14. 5
  15. 87
  16. 29
  17. 48
  18. 19
  19. 0
  20. 1
  21. 10
  22. 55
  23. violet-black-orange
  24. 65
  25. 450
  26. 22
  27. yellow-white-orange
  28. 7700
  29. 3300
  30. 7
  31. 80000
  32. 700
  33. 9
  34. red-blue-brown
  35. 79
  36. orange-blue-black
  37. 36
  38. 31
  39. 76000
  40. orange-black-black

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