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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 144 · 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.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does orange stand for?
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does black stand for?
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  13. 13.🌈 In the resistor colour code, which number does red stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-red (b) grey-yellow-brown (c) yellow-grey-black (d) yellow-grey-brown
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-black (b) white-green-brown (c) green-white-brown (d) green-white-red
  16. 16.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-red (b) grey-orange-black (c) orange-grey-brown (d) grey-orange-brown
  18. 18.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) yellow-violet-orange (b) yellow-violet-brown (c) violet-yellow-red (d) yellow-violet-red
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 In the resistor colour code, which number does yellow stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-red (b) brown-green-orange (c) green-brown-yellow (d) green-brown-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-black (b) yellow-black-black (c) orange-black-brown (d) yellow-orange-black
  26. 26.🌈 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
  27. 27.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) grey-red-black (b) red-grey-brown (c) grey-red-brown (d) grey-red-red
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-blue-orange (b) blue-violet-red (c) blue-blue-brown (d) blue-blue-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-orange (b) orange-green-red (c) green-orange-brown (d) green-orange-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) red-black-black (b) brown-black-brown (c) brown-black-black (d) red-brown-black
  38. 38.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 20
  2. 34
  3. 72
  4. 4.2
  5. 3
  6. 5
  7. 1.1
  8. 0
  9. 8
  10. 500
  11. 7
  12. 5 %
  13. 2
  14. yellow-grey-brown
  15. green-white-brown
  16. 41
  17. grey-orange-brown
  18. 1200
  19. 850
  20. 850
  21. yellow-violet-red
  22. 9
  23. 4
  24. green-brown-orange
  25. orange-black-black
  26. the one nearest an end
  27. 4200
  28. 280
  29. 92
  30. 67
  31. 79
  32. 4400
  33. grey-red-brown
  34. 1
  35. blue-blue-red
  36. green-orange-red
  37. brown-black-black
  38. 1.5
  39. 52000
  40. 110

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