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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 544 · 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 kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  5. 5.🌈 In the resistor colour code, which number does green stand for?
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands yellow, white, red. What is its value (in ohms)?
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-red (b) orange-blue-brown (c) orange-blue-black (d) blue-orange-brown
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-orange (b) brown-blue-red (c) brown-blue-brown (d) blue-brown-red
  11. 11.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) violet-blue-orange (d) blue-black-yellow
  13. 13.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, blue, red. 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 370 Ω resistor? (a) orange-violet-black (b) orange-violet-brown (c) orange-violet-red (d) violet-orange-brown
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-yellow (b) red-brown-orange (c) brown-red-red (d) brown-red-orange
  20. 20.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-black (b) yellow-orange-black (c) orange-black-brown (d) yellow-black-black
  23. 23.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-black (b) red-green-brown (c) green-red-brown (d) red-green-red
  26. 26.🌈 A resistor has the colour bands brown, white, orange. 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 blue, black, orange. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) orange-brown-brown (b) brown-orange-brown (c) brown-orange-red (d) brown-orange-black
  30. 30.🌈 In the resistor colour code, which number does blue stand for?
  31. 31.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-red (b) green-black-black (c) blue-green-brown (d) green-black-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) white-brown-black (b) white-brown-red (c) white-brown-brown (d) brown-white-brown
  38. 38.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 79
  2. 67000
  3. 260
  4. 5 %
  5. 5
  6. 3
  7. 4900
  8. the one nearest an end
  9. orange-blue-brown
  10. brown-blue-red
  11. 6.9
  12. blue-black-orange
  13. 610
  14. 190
  15. 680
  16. 5.6
  17. 93
  18. orange-violet-brown
  19. brown-red-orange
  20. 75
  21. 34000
  22. orange-black-black
  23. 39
  24. 4
  25. red-green-brown
  26. 19000
  27. 8
  28. 60000
  29. brown-orange-brown
  30. 6
  31. 7.2
  32. 620
  33. 70
  34. 90
  35. 48
  36. green-black-brown
  37. white-brown-brown
  38. 91
  39. 57
  40. 7.8

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