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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 778 · 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) 25 % (b) 50 % (c) 5 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  4. 4.🌈 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
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) orange-grey-yellow (b) grey-orange-orange (c) orange-grey-orange (d) orange-grey-red
  6. 6.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-red (b) red-yellow-red (c) yellow-red-orange (d) yellow-red-brown
  12. 12.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-black-black (b) yellow-black-black (c) yellow-black-brown (d) green-yellow-black
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-yellow (b) violet-brown-red (c) brown-violet-orange (d) violet-brown-orange
  20. 20.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-red (b) orange-orange-orange (c) orange-yellow-orange (d) orange-orange-yellow
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) green-white-black (b) brown-green-black (c) white-green-brown (d) white-green-black
  26. 26.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) orange-yellow-black (b) yellow-yellow-black (c) yellow-orange-black (d) orange-yellow-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-red-black (c) brown-brown-brown (d) brown-brown-black
  40. 40.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 120
  3. 79
  4. the one nearest an end
  5. orange-grey-orange
  6. 910
  7. 92
  8. 8
  9. 9000
  10. 9
  11. yellow-red-red
  12. 3300
  13. yellow-black-black
  14. 7
  15. 51000
  16. 2.6
  17. 44000
  18. 2
  19. violet-brown-orange
  20. 2.1
  21. 93000
  22. 16000
  23. orange-orange-orange
  24. 1
  25. white-green-black
  26. 6.7
  27. 57
  28. 2.4
  29. 600
  30. 5
  31. 51
  32. 10
  33. 6.1
  34. 7.7
  35. 3
  36. 130
  37. 6700
  38. orange-yellow-black
  39. brown-brown-black
  40. 420

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