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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 581 · 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.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 240 Ω resistor? (a) yellow-red-brown (b) red-yellow-black (c) red-yellow-red (d) red-yellow-brown
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-red (b) green-grey-orange (c) green-grey-yellow (d) grey-green-orange
  5. 5.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-orange (b) red-violet-yellow (c) violet-red-orange (d) red-violet-red
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) grey-brown-black (b) violet-brown-brown (c) violet-brown-black (d) brown-violet-black
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  13. 13.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 In the resistor colour code, which number does grey stand for?
  16. 16.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) white-blue-red (c) blue-white-brown (d) white-blue-black
  19. 19.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does violet stand for?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) orange-black-black (c) orange-black-brown (d) yellow-orange-brown
  23. 23.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-brown (b) orange-green-black (c) yellow-green-black (d) green-orange-black
  25. 25.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) white-yellow-black (b) grey-yellow-brown (c) grey-yellow-black (d) yellow-grey-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) violet-green-black (b) green-violet-brown (c) violet-green-red (d) violet-green-brown
  29. 29.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) red-blue-black (b) brown-blue-black (c) brown-blue-brown (d) blue-brown-black
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. red-yellow-brown
  3. 0
  4. green-grey-orange
  5. 78
  6. 450
  7. 2
  8. red-violet-orange
  9. violet-brown-black
  10. 4
  11. 4
  12. 5 %
  13. 97
  14. 9
  15. 8
  16. 560
  17. 66000
  18. white-blue-brown
  19. 29
  20. 7
  21. 1
  22. orange-black-brown
  23. 340
  24. orange-green-black
  25. 230
  26. 190
  27. grey-yellow-black
  28. violet-green-brown
  29. 6500
  30. 110
  31. 67
  32. 89
  33. 270
  34. 2.9
  35. brown-blue-black
  36. 5
  37. 900
  38. 6700
  39. 73
  40. 2000

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