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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 85 · 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 band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  3. 3.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) brown-brown-black (b) white-brown-brown (c) white-brown-black (d) brown-white-black
  5. 5.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  8. 8.🌈 In the resistor colour code, which number does yellow stand for?
  9. 9.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-orange (b) blue-orange-orange (c) orange-blue-yellow (d) orange-blue-red
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) green-yellow-red (b) yellow-green-brown (c) yellow-green-red (d) yellow-green-orange
  16. 16.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does black stand for?
  18. 18.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) red-brown-brown (d) red-brown-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) orange-grey-black (b) grey-orange-black (c) yellow-grey-black (d) orange-grey-brown
  24. 24.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does red stand for?
  27. 27.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-brown (b) orange-brown-red (c) orange-brown-orange (d) brown-orange-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) violet-orange-orange (b) orange-violet-orange (c) orange-violet-red (d) orange-violet-yellow
  32. 32.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-orange (b) yellow-yellow-brown (c) yellow-green-red (d) yellow-yellow-red
  37. 37.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) yellow-blue-red (b) blue-yellow-brown (c) blue-yellow-red (d) blue-yellow-orange
  39. 39.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does violet stand for?

Answer key

  1. the one nearest an end
  2. 5 %
  3. 64000
  4. white-brown-black
  5. 1000
  6. 6.4
  7. 850
  8. 4
  9. 12000
  10. 750
  11. 2000
  12. 830
  13. 500
  14. orange-blue-orange
  15. yellow-green-red
  16. 1.1
  17. 0
  18. 68000
  19. 91
  20. 940
  21. 300
  22. red-brown-red
  23. orange-grey-black
  24. 76
  25. 120
  26. 2
  27. 920
  28. 1
  29. 29
  30. orange-brown-red
  31. orange-violet-orange
  32. 570
  33. 89
  34. 1900
  35. 5700
  36. yellow-yellow-red
  37. 170
  38. blue-yellow-red
  39. 9.6
  40. 7

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