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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 783 · 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.🌈 In the resistor colour code, which number does blue stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-brown (b) orange-green-black (c) orange-green-red (d) green-orange-brown
  4. 4.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  7. 7.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-brown (b) yellow-green-black (c) green-green-black (d) green-yellow-black
  17. 17.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-orange (b) green-black-red (c) green-black-yellow (d) blue-green-orange
  27. 27.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does yellow stand for?
  29. 29.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) white-brown-brown (b) brown-white-brown (c) brown-white-black (d) brown-white-red
  31. 31.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-black (b) green-grey-black (c) yellow-grey-brown (d) grey-yellow-black
  36. 36.🌈 In the resistor colour code, which number does white stand for?
  37. 37.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33000 Ω resistor? (a) orange-orange-orange (b) orange-orange-yellow (c) orange-orange-red (d) orange-yellow-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-brown (c) brown-black-red (d) brown-black-orange
  40. 40.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 6
  2. the one nearest an end
  3. orange-green-brown
  4. 570
  5. 69
  6. 5 %
  7. 4.4
  8. 13
  9. 590
  10. 86
  11. 83000
  12. 8600
  13. 1
  14. 0
  15. 9
  16. yellow-green-black
  17. 75
  18. 84000
  19. 34
  20. 3400
  21. 9500
  22. 550
  23. 8.2
  24. 64000
  25. 5
  26. green-black-orange
  27. 76
  28. 4
  29. 31
  30. brown-white-brown
  31. 710
  32. 11
  33. 620
  34. 91
  35. yellow-grey-black
  36. 9
  37. 410
  38. orange-orange-orange
  39. brown-black-red
  40. 83

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