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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 672 · 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 white, green, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does white stand for?
  3. 3.🌈 In the resistor colour code, which number does yellow stand for?
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-red (b) yellow-red-brown (c) yellow-red-orange (d) red-yellow-red
  6. 6.🌈 In the resistor colour code, which number does red stand for?
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands brown, grey, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-brown (c) red-violet-black (d) red-violet-red
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-orange (b) yellow-brown-yellow (c) yellow-brown-red (d) brown-yellow-orange
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) yellow-brown-black (b) red-yellow-black (c) brown-yellow-black (d) brown-yellow-brown
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  15. 15.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-black (b) orange-red-brown (c) red-black-brown (d) red-black-red
  28. 28.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  32. 32.🌈 A resistor has the colour bands grey, green, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) grey-red-red (b) red-grey-red (c) red-grey-orange (d) red-grey-brown
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-brown (b) green-green-black (c) blue-green-black (d) green-blue-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-yellow (b) brown-green-red (c) brown-green-orange (d) green-brown-orange
  37. 37.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) green-orange-brown (b) orange-green-black (c) blue-orange-black (d) green-orange-black
  40. 40.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 9.5
  2. 9
  3. 4
  4. 0
  5. yellow-red-red
  6. 2
  7. 6
  8. 37
  9. 18000
  10. red-violet-brown
  11. yellow-brown-orange
  12. brown-yellow-black
  13. 8
  14. 5 %
  15. 86
  16. 20000
  17. 680
  18. 1
  19. 93
  20. 910
  21. 55
  22. 97
  23. 99
  24. 25
  25. 68
  26. 730
  27. red-black-brown
  28. 31
  29. 67
  30. 4.3
  31. the one nearest an end
  32. 8.5
  33. 7
  34. red-grey-red
  35. green-green-black
  36. brown-green-orange
  37. 100
  38. 440
  39. green-orange-black
  40. 47

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