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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 646 · 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.🌈 In the resistor colour code, which number does grey stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 In the resistor colour code, which number does yellow stand for?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-yellow-brown (b) yellow-yellow-red (c) yellow-green-red (d) yellow-yellow-orange
  14. 14.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands blue, red, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) violet-black-black (d) violet-blue-black
  17. 17.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) red-yellow-black (c) brown-yellow-black (d) yellow-brown-black
  20. 20.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) grey-green-orange (b) green-grey-red (c) green-grey-yellow (d) green-grey-orange
  22. 22.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) brown-violet-brown (c) brown-violet-black (d) violet-brown-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) orange-grey-red (b) grey-orange-brown (c) grey-orange-orange (d) grey-orange-red
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) brown-green-black (b) brown-green-brown (c) red-green-black (d) green-brown-black
  29. 29.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does blue stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-orange (b) white-violet-red (c) violet-white-brown (d) violet-white-red
  36. 36.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 In the resistor colour code, which number does red stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) yellow-grey-black (b) grey-orange-black (c) orange-grey-black (d) orange-grey-brown

Answer key

  1. 8
  2. the one nearest an end
  3. 830
  4. 1
  5. 4
  6. 5 %
  7. 9
  8. 0
  9. 540
  10. 52
  11. 7000
  12. 150
  13. yellow-yellow-red
  14. 9.9
  15. 620
  16. blue-black-black
  17. 4200
  18. 2.9
  19. brown-yellow-black
  20. 670
  21. green-grey-orange
  22. 93
  23. brown-violet-brown
  24. grey-orange-red
  25. 7
  26. 530
  27. 320
  28. brown-green-black
  29. 54
  30. 550
  31. 35
  32. 70
  33. 40
  34. 6
  35. violet-white-red
  36. 36
  37. 5.8
  38. 3
  39. 2
  40. orange-grey-black

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