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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 710 · 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.

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  1. 1.🌈 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
  2. 2.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-brown (b) violet-blue-red (c) blue-violet-red (d) violet-blue-orange
  4. 4.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-brown (b) red-blue-red (c) red-blue-black (d) blue-red-brown
  6. 6.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  11. 11.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-brown (b) yellow-green-red (c) yellow-green-orange (d) green-yellow-red
  13. 13.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-black (b) yellow-violet-red (c) violet-yellow-brown (d) yellow-violet-brown
  16. 16.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does white stand for?
  18. 18.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  22. 22.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8600 Ω resistor? (a) grey-blue-brown (b) grey-blue-red (c) blue-grey-red (d) grey-blue-orange
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) orange-green-red (b) green-orange-brown (c) green-orange-orange (d) green-orange-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-orange (b) brown-black-brown (c) brown-black-red (d) red-brown-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) brown-violet-orange (c) violet-brown-orange (d) brown-violet-yellow
  27. 27.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) red-grey-black (b) grey-red-black (c) grey-red-brown (d) white-red-black
  34. 34.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 In the resistor colour code, which number does orange stand for?
  38. 38.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?

Answer key

  1. green-violet-brown
  2. 9.2
  3. violet-blue-red
  4. 8700
  5. red-blue-brown
  6. 110
  7. 45
  8. 5200
  9. 420
  10. 5 %
  11. 4.6
  12. yellow-green-red
  13. 7000
  14. 76000
  15. yellow-violet-brown
  16. 5600
  17. 9
  18. 9700
  19. 6
  20. 5.7
  21. 87000
  22. the one nearest an end
  23. grey-blue-red
  24. green-orange-red
  25. brown-black-red
  26. brown-violet-orange
  27. 210
  28. 84
  29. 62
  30. 6800
  31. 750
  32. 2
  33. grey-red-black
  34. 100
  35. 23000
  36. 1
  37. 3
  38. 600
  39. 6000
  40. 280

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