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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 260 · 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 resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) white-brown-red (b) brown-white-brown (c) brown-white-red (d) brown-white-orange
  3. 3.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands blue, orange, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) green-orange-brown (c) blue-orange-black (d) green-orange-black
  6. 6.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  8. 8.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  9. 9.🌈 A resistor has the colour bands white, black, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-black (b) grey-blue-black (c) blue-grey-brown (d) violet-grey-black
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) brown-black-orange (b) red-brown-orange (c) brown-black-yellow (d) brown-black-red
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-yellow (b) blue-red-orange (c) red-blue-orange (d) blue-red-red
  27. 27.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) yellow-grey-orange (b) grey-yellow-orange (c) grey-yellow-red (d) grey-yellow-yellow
  31. 31.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) red-orange-orange (b) orange-red-yellow (c) orange-red-orange (d) orange-red-red
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-red (b) violet-blue-orange (c) blue-violet-yellow (d) blue-violet-orange

Answer key

  1. 110
  2. brown-white-red
  3. 40000
  4. 63
  5. green-orange-black
  6. 8.2
  7. 5 %
  8. the one nearest an end
  9. 900
  10. 6100
  11. 26000
  12. 690
  13. blue-grey-black
  14. 3
  15. 21000
  16. 0
  17. 920
  18. 480
  19. 7.4
  20. brown-black-orange
  21. 9
  22. 100
  23. 730
  24. 860
  25. 5
  26. blue-red-orange
  27. 1.1
  28. 850
  29. 23
  30. grey-yellow-orange
  31. 350
  32. 70
  33. 11
  34. 90000
  35. 910
  36. 79
  37. 390
  38. 34
  39. orange-red-orange
  40. blue-violet-orange

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