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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 20 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) violet-green-brown (b) green-violet-brown (c) green-violet-black (d) green-violet-red
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-grey-brown (b) violet-violet-black (c) violet-violet-red (d) violet-violet-brown
  9. 9.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  14. 14.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does white stand for?
  25. 25.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-yellow (b) brown-brown-red (c) brown-red-orange (d) brown-brown-orange
  27. 27.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) brown-grey-yellow (b) brown-grey-orange (c) grey-brown-orange (d) brown-grey-red
  30. 30.🌈 In the resistor colour code, which number does grey stand for?
  31. 31.🌈 In the resistor colour code, which number does green stand for?
  32. 32.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does yellow stand for?
  34. 34.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) brown-white-red (b) brown-white-black (c) brown-white-brown (d) white-brown-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-yellow (b) grey-yellow-red (c) grey-yellow-orange (d) yellow-grey-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) blue-white-orange (c) blue-white-red (d) white-blue-red
  38. 38.🌈 In the resistor colour code, which number does brown stand for?
  39. 39.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 6.3
  3. 610
  4. 7
  5. 25
  6. green-violet-brown
  7. 2
  8. violet-violet-brown
  9. 9
  10. 59
  11. 70
  12. 8.4
  13. the one nearest an end
  14. 67
  15. 210
  16. 830
  17. 6100
  18. 20
  19. 60000
  20. 3.5
  21. 3.1
  22. 190
  23. 85
  24. 9
  25. 1.1
  26. brown-brown-orange
  27. 7700
  28. 440
  29. brown-grey-orange
  30. 8
  31. 5
  32. 70
  33. 4
  34. 200
  35. brown-white-brown
  36. grey-yellow-orange
  37. blue-white-red
  38. 1
  39. 12
  40. 590

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