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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 815 · 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 violet stand for?
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 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
  4. 4.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-yellow (c) orange-green-orange (d) orange-green-red
  12. 12.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  16. 16.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  17. 17.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does yellow stand for?
  19. 19.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-black (b) white-white-brown (c) white-black-brown (d) white-white-red
  23. 23.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands yellow, grey, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 In the resistor colour code, which number does blue stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-brown (b) white-grey-red (c) white-grey-black (d) grey-white-brown
  33. 33.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-black (b) red-brown-brown (c) brown-red-red (d) brown-red-brown
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-black (b) green-orange-brown (c) orange-green-red (d) orange-green-brown
  36. 36.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 7
  2. 2
  3. the one nearest an end
  4. 670
  5. 470
  6. 3.6
  7. 17000
  8. 36000
  9. 11
  10. 1
  11. orange-green-orange
  12. 1900
  13. 5
  14. 9
  15. 49
  16. 5 %
  17. 860
  18. 4
  19. 9.7
  20. 6.8
  21. 99000
  22. white-white-brown
  23. 3.4
  24. 2600
  25. 80000
  26. 2.7
  27. 8
  28. 48000
  29. 560
  30. 3
  31. 6
  32. white-grey-brown
  33. 150
  34. brown-red-brown
  35. orange-green-brown
  36. 21
  37. 54
  38. 310
  39. 22
  40. 230

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