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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 985 · 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) 25 % (c) 0 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) green-grey-black (b) white-green-black (c) grey-green-brown (d) grey-green-black
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-blue-red (d) green-green-orange
  7. 7.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-red (b) brown-green-brown (c) green-brown-brown (d) brown-green-black
  9. 9.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51 Ω resistor? (a) green-brown-black (b) blue-brown-black (c) brown-green-black (d) green-brown-brown
  11. 11.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-brown (b) red-orange-orange (c) red-orange-red (d) orange-red-red
  14. 14.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-orange (b) red-black-yellow (c) red-black-red (d) orange-red-orange
  20. 20.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-black (b) grey-orange-red (c) orange-grey-brown (d) grey-orange-brown
  24. 24.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  25. 25.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) yellow-yellow-black (d) yellow-yellow-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-red (b) white-white-black (c) white-black-brown (d) white-white-brown
  29. 29.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1400 Ω resistor? (a) brown-yellow-orange (b) brown-yellow-red (c) yellow-brown-red (d) brown-yellow-brown
  37. 37.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) orange-grey-black (b) red-grey-brown (c) red-grey-black (d) grey-red-black
  40. 40.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 410
  3. grey-green-black
  4. 0
  5. 27
  6. green-green-red
  7. 11000
  8. brown-green-brown
  9. 52
  10. green-brown-black
  11. 97
  12. 76
  13. red-orange-red
  14. 860
  15. 57
  16. 25
  17. 21
  18. 9800
  19. red-black-orange
  20. 290
  21. 1.6
  22. 54
  23. grey-orange-brown
  24. the one nearest an end
  25. 39000
  26. 6
  27. yellow-yellow-black
  28. white-white-brown
  29. 14000
  30. 9
  31. 2700
  32. 31
  33. 250
  34. 1
  35. 4.8
  36. brown-yellow-red
  37. 200
  38. 77
  39. red-grey-black
  40. 650

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