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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 12 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-brown (c) orange-blue-red (d) blue-orange-red
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) green-violet-black (c) violet-green-black (d) violet-green-brown
  5. 5.🌈 In the resistor colour code, which number does blue stand for?
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-violet-brown (b) violet-violet-red (c) violet-violet-black (d) violet-grey-brown
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-grey-brown (b) grey-grey-orange (c) grey-grey-red (d) grey-white-red
  9. 9.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does black stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) green-green-black (b) yellow-green-black (c) green-yellow-black (d) yellow-green-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) white-brown-black (b) grey-brown-brown (c) grey-brown-black (d) brown-grey-black
  15. 15.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-orange (b) brown-white-red (c) white-brown-orange (d) brown-white-yellow
  19. 19.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6700 Ω resistor? (a) blue-violet-red (b) blue-violet-orange (c) blue-violet-brown (d) violet-blue-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8500 Ω resistor? (a) green-grey-red (b) grey-green-red (c) grey-green-orange (d) grey-green-brown
  26. 26.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-orange (b) red-grey-red (c) red-grey-brown (d) grey-red-red
  33. 33.🌈 In the resistor colour code, which number does brown stand for?
  34. 34.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55000 Ω resistor? (a) green-green-red (b) green-green-yellow (c) green-green-orange (d) green-blue-orange
  40. 40.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?

Answer key

  1. orange-blue-red
  2. 5 %
  3. 5.5
  4. violet-green-black
  5. 6
  6. 2
  7. violet-violet-brown
  8. grey-grey-red
  9. the one nearest an end
  10. 8
  11. 130
  12. 0
  13. yellow-green-black
  14. grey-brown-black
  15. 33
  16. 58000
  17. 910
  18. brown-white-orange
  19. 1900
  20. 50
  21. 9
  22. 480
  23. 780
  24. blue-violet-red
  25. grey-green-red
  26. 610
  27. 7800
  28. 6700
  29. 8.1
  30. 7.5
  31. 1400
  32. red-grey-red
  33. 1
  34. 7400
  35. 6400
  36. 3.9
  37. 82
  38. 51
  39. green-green-orange
  40. 11

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