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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 465 · 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 red, orange, brown. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  3. 3.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands red, red, orange. 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) 25 % (c) 50 % (d) 5 %
  7. 7.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-red (b) green-yellow-orange (c) yellow-green-red (d) green-yellow-brown
  9. 9.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands yellow, blue, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does yellow stand for?
  21. 21.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-brown (b) yellow-green-red (c) green-yellow-red (d) yellow-green-orange
  30. 30.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-red (b) white-green-orange (c) green-white-orange (d) white-green-yellow
  32. 32.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-red (c) red-yellow-black (d) red-yellow-brown
  34. 34.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 610 Ω resistor? (a) blue-brown-brown (b) blue-brown-red (c) blue-brown-black (d) brown-blue-brown
  36. 36.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-red (b) yellow-green-red (c) yellow-yellow-brown (d) yellow-yellow-orange
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) yellow-white-black (b) orange-white-black (c) white-orange-black (d) orange-white-brown
  40. 40.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 230
  2. the one nearest an end
  3. 6200
  4. 40
  5. 22000
  6. 5 %
  7. 7.4
  8. green-yellow-red
  9. 59000
  10. 460
  11. 3
  12. 19000
  13. 9.3
  14. 3.2
  15. 5
  16. 50
  17. 34
  18. 30
  19. 670
  20. 4
  21. 74
  22. 14
  23. 2
  24. 580
  25. 7
  26. 65
  27. 8
  28. 720
  29. yellow-green-red
  30. 170
  31. white-green-orange
  32. 7.3
  33. red-yellow-brown
  34. 94
  35. blue-brown-brown
  36. 290
  37. yellow-yellow-red
  38. 1
  39. orange-white-black
  40. 8.5

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