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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 468 · 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, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) yellow-orange-brown (b) orange-black-black (c) orange-black-brown (d) orange-black-red
  5. 5.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-brown-brown (d) red-brown-red
  10. 10.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  11. 11.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-brown (c) brown-orange-black (d) orange-brown-black
  13. 13.🌈 In the resistor colour code, which number does white stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-black (c) red-black-brown (d) red-black-red
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does red stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-black (b) red-red-black (c) red-brown-black (d) brown-red-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-orange-orange (b) red-red-red (c) red-red-yellow (d) red-red-orange
  25. 25.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-orange (c) grey-green-orange (d) green-grey-red
  28. 28.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-orange (b) white-yellow-brown (c) white-yellow-red (d) yellow-white-red
  30. 30.🌈 In the resistor colour code, which number does grey stand for?
  31. 31.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands yellow, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-brown (b) brown-blue-red (c) blue-brown-red (d) brown-blue-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) blue-violet-black (b) violet-blue-black (c) violet-blue-brown (d) grey-blue-black
  37. 37.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) white-orange-black (b) yellow-white-black (c) orange-white-brown (d) orange-white-black
  39. 39.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?

Answer key

  1. 24
  2. 880
  3. 5 %
  4. orange-black-brown
  5. 200
  6. 5
  7. 95000
  8. 6.9
  9. red-brown-brown
  10. the one nearest an end
  11. 660
  12. brown-orange-black
  13. 9
  14. red-black-brown
  15. 7
  16. 17000
  17. 1
  18. 1.5
  19. 550
  20. 92
  21. 570
  22. 2
  23. brown-red-black
  24. red-red-orange
  25. 8700
  26. 8.4
  27. green-grey-orange
  28. 2300
  29. white-yellow-red
  30. 8
  31. 61
  32. 4.2
  33. 44000
  34. 3.1
  35. brown-blue-red
  36. violet-blue-black
  37. 400
  38. orange-white-black
  39. 10
  40. 72000

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