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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 151 · 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.

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  1. 1.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) white-yellow-black (b) grey-yellow-black (c) yellow-grey-black (d) grey-yellow-brown
  3. 3.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-yellow (b) red-blue-red (c) red-blue-orange (d) blue-red-orange
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-red (b) orange-white-red (c) white-orange-orange (d) white-orange-brown
  7. 7.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands orange, white, orange. What is its value (in ohms)?
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-red (b) blue-green-red (c) green-black-orange (d) green-black-brown
  19. 19.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) yellow-blue-red (c) blue-yellow-brown (d) blue-yellow-red
  21. 21.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) brown-orange-orange (c) brown-orange-red (d) orange-brown-orange
  26. 26.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-black (b) violet-blue-black (c) blue-violet-black (d) blue-blue-brown
  31. 31.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) blue-yellow-black (b) green-yellow-brown (c) yellow-green-black (d) green-yellow-black
  35. 35.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) grey-brown-black (b) violet-brown-black (c) brown-violet-black (d) violet-brown-brown
  37. 37.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?

Answer key

  1. 79000
  2. grey-yellow-black
  3. 7400
  4. red-blue-orange
  5. 5
  6. white-orange-red
  7. 7700
  8. 3200
  9. 22
  10. 7.1
  11. 39000
  12. the one nearest an end
  13. 2
  14. 450
  15. 7900
  16. 0
  17. 5
  18. green-black-red
  19. 7200
  20. blue-yellow-red
  21. 68
  22. 9000
  23. 1
  24. 21
  25. brown-orange-orange
  26. 4900
  27. 340
  28. 59000
  29. 7
  30. blue-blue-black
  31. 39
  32. 86000
  33. 520
  34. green-yellow-black
  35. 280
  36. violet-brown-black
  37. 7.5
  38. 4.1
  39. 12000
  40. 91

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