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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 35 · 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) 25 % (b) 50 % (c) 5 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-brown (b) violet-grey-red (c) violet-violet-orange (d) violet-violet-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) violet-blue-red (d) blue-black-brown
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  12. 12.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-black (b) grey-grey-brown (c) white-grey-black (d) grey-white-black
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) green-yellow-red (b) yellow-green-orange (c) yellow-green-brown (d) yellow-green-red
  22. 22.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-black (b) blue-violet-black (c) blue-blue-brown (d) violet-blue-black
  24. 24.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, yellow, red. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does green stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) blue-red-orange (b) red-blue-yellow (c) red-blue-red (d) red-blue-orange
  30. 30.🌈 A resistor has the colour bands orange, green, orange. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does red stand for?
  32. 32.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) brown-white-orange (b) white-black-yellow (c) white-black-orange (d) white-black-red
  35. 35.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-brown (b) brown-orange-red (c) brown-orange-black (d) orange-brown-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 390 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) orange-white-brown (d) orange-white-red
  38. 38.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 84
  3. 0
  4. violet-violet-red
  5. blue-black-red
  6. 7
  7. 3.3
  8. 4
  9. 14000
  10. 73
  11. the one nearest an end
  12. 20000
  13. 84
  14. grey-grey-black
  15. 3
  16. 6
  17. 760
  18. 9
  19. 770
  20. 47
  21. yellow-green-red
  22. 4000
  23. blue-blue-black
  24. 42000
  25. 9400
  26. 1
  27. 2100
  28. 5
  29. red-blue-orange
  30. 35000
  31. 2
  32. 57
  33. 830
  34. white-black-orange
  35. 9.8
  36. brown-orange-brown
  37. orange-white-brown
  38. 9100
  39. 5100
  40. 41

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