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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 290 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) red-orange-red (b) red-orange-black (c) red-orange-brown (d) orange-red-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-orange (b) blue-brown-brown (c) brown-blue-red (d) blue-brown-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-red (b) red-yellow-red (c) yellow-red-orange (d) yellow-red-brown
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-orange (b) red-blue-red (c) blue-red-orange (d) red-blue-yellow
  16. 16.🌈 In the resistor colour code, which number does white stand for?
  17. 17.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  18. 18.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) brown-grey-black (b) white-brown-black (c) grey-brown-black (d) grey-brown-brown
  20. 20.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) violet-brown-black (b) grey-brown-black (c) violet-brown-brown (d) brown-violet-black
  27. 27.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, blue, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 700 Ω resistor? (a) violet-black-red (b) violet-black-brown (c) grey-violet-brown (d) violet-black-black
  33. 33.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-brown (c) yellow-violet-black (d) yellow-violet-red
  38. 38.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-red (b) yellow-grey-brown (c) grey-yellow-brown (d) yellow-grey-black

Answer key

  1. 5 %
  2. 590
  3. red-orange-brown
  4. blue-brown-red
  5. yellow-red-red
  6. 3
  7. 27
  8. 3
  9. 660
  10. 29000
  11. 69
  12. 8
  13. 0
  14. 820
  15. red-blue-orange
  16. 9
  17. 310
  18. the one nearest an end
  19. grey-brown-black
  20. 250
  21. 1
  22. 98000
  23. 950
  24. 2
  25. 860
  26. violet-brown-black
  27. 1.9
  28. 53
  29. 560
  30. 96
  31. 66
  32. violet-black-brown
  33. 1.1
  34. 4
  35. 920
  36. 79
  37. yellow-violet-brown
  38. 510
  39. 49
  40. yellow-grey-brown

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