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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 905 · 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 yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-red (b) orange-yellow-red (c) orange-orange-orange (d) orange-orange-brown
  7. 7.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-brown-black (c) red-black-black (d) brown-black-black
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) yellow-orange-red (b) orange-yellow-brown (c) yellow-orange-black (d) yellow-orange-brown
  13. 13.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) yellow-orange-brown (b) orange-yellow-brown (c) orange-yellow-red (d) orange-yellow-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-white-brown (b) grey-grey-red (c) grey-grey-brown (d) grey-grey-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) blue-violet-brown (b) violet-blue-black (c) violet-blue-red (d) violet-blue-brown
  20. 20.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  25. 25.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 530 Ω resistor? (a) green-orange-brown (b) green-orange-black (c) orange-green-brown (d) green-orange-red
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, black, red. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does yellow stand for?
  39. 39.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 4.3
  2. 2
  3. 3000
  4. 18
  5. 5 %
  6. orange-orange-red
  7. 23000
  8. 23
  9. 68
  10. brown-black-black
  11. 6
  12. yellow-orange-brown
  13. 67
  14. 8.3
  15. 74
  16. 7900
  17. orange-yellow-brown
  18. grey-grey-brown
  19. violet-blue-brown
  20. 8200
  21. 5
  22. 1
  23. 450
  24. the one nearest an end
  25. 760
  26. green-orange-brown
  27. 3
  28. 2.5
  29. 200
  30. 26000
  31. 910
  32. 55
  33. 660
  34. 5200
  35. 82
  36. 3400
  37. 8000
  38. 4
  39. 20
  40. 9.4

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