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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 87 · 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) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 In the resistor colour code, which number does black stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-black (c) grey-yellow-black (d) violet-yellow-black
  22. 22.🌈 A resistor has the colour bands yellow, violet, orange. 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.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-red (b) grey-violet-orange (c) violet-grey-yellow (d) violet-grey-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-red (b) violet-green-brown (c) green-violet-brown (d) green-violet-black
  28. 28.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands green, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) blue-brown-brown (c) brown-blue-red (d) blue-brown-red
  35. 35.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-yellow (b) grey-grey-orange (c) grey-white-orange (d) grey-grey-red
  38. 38.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 9.5
  3. 8
  4. 62
  5. the one nearest an end
  6. 4
  7. 1
  8. 46
  9. 3.1
  10. 250
  11. 6
  12. 2
  13. 7300
  14. 4200
  15. 620
  16. 650
  17. 3
  18. 93
  19. 7
  20. 0
  21. violet-yellow-black
  22. 47
  23. 85
  24. 50
  25. 5
  26. violet-grey-orange
  27. green-violet-brown
  28. 740
  29. 6
  30. 4600
  31. 580
  32. 2700
  33. 54000
  34. blue-brown-red
  35. 10
  36. 200
  37. grey-grey-orange
  38. 6.8
  39. 16000
  40. 7000

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