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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 930 · 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, blue, brown. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-yellow (b) violet-blue-red (c) blue-violet-orange (d) violet-blue-orange
  8. 8.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-brown (b) red-violet-black (c) violet-red-brown (d) red-violet-red
  19. 19.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-brown (b) grey-violet-red (c) violet-black-orange (d) violet-black-red
  21. 21.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  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-white-red (d) white-black-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) grey-green-red (b) green-grey-brown (c) green-grey-red (d) green-grey-orange
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-brown-brown (d) red-brown-red
  25. 25.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does yellow stand for?
  28. 28.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) orange-violet-brown (b) orange-violet-black (c) yellow-violet-black (d) violet-orange-black
  30. 30.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does red stand for?
  32. 32.🌈 In the resistor colour code, which number does violet stand for?
  33. 33.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, grey, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) orange-blue-brown (b) blue-orange-red (c) blue-orange-black (d) blue-orange-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-black (b) brown-yellow-brown (c) yellow-brown-brown (d) brown-yellow-red
  40. 40.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?

Answer key

  1. 460
  2. 5 %
  3. 16000
  4. 1.9
  5. 23000
  6. 4
  7. violet-blue-orange
  8. 18
  9. 5
  10. the one nearest an end
  11. 1
  12. 81000
  13. 4500
  14. 6500
  15. 720
  16. 28
  17. 93
  18. red-violet-brown
  19. 3.5
  20. violet-black-red
  21. 380
  22. white-white-brown
  23. green-grey-red
  24. red-brown-brown
  25. 3.3
  26. 1500
  27. 4
  28. 1.1
  29. orange-violet-black
  30. 5.1
  31. 2
  32. 7
  33. 91
  34. 28000
  35. 1200
  36. 9100
  37. 26000
  38. blue-orange-brown
  39. brown-yellow-brown
  40. 58

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