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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 366 · 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 red, blue, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands orange, brown, black. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-brown (b) grey-white-black (c) brown-grey-black (d) white-grey-black
  6. 6.🌈 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
  7. 7.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-red (c) violet-orange-brown (d) violet-orange-orange
  10. 10.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) brown-grey-brown (b) grey-brown-black (c) grey-brown-brown (d) grey-brown-red
  16. 16.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) grey-orange-black (b) violet-orange-black (c) orange-violet-black (d) violet-orange-brown
  22. 22.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) red-yellow-black (b) yellow-brown-black (c) brown-yellow-black (d) brown-yellow-brown
  25. 25.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-black (b) grey-red-brown (c) white-red-black (d) red-grey-black
  29. 29.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does brown stand for?
  31. 31.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-orange (b) grey-green-orange (c) green-grey-red (d) green-grey-yellow
  34. 34.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) yellow-blue-orange (b) blue-yellow-yellow (c) blue-yellow-orange (d) blue-yellow-red
  38. 38.🌈 In the resistor colour code, which number does red stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 480 Ω resistor? (a) yellow-grey-red (b) grey-yellow-brown (c) yellow-grey-brown (d) yellow-grey-black
  40. 40.🌈 A resistor has the colour bands green, green, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 26000
  2. 13
  3. 5 %
  4. 31
  5. white-grey-black
  6. the one nearest an end
  7. 820
  8. 98
  9. violet-orange-red
  10. 120
  11. 9
  12. 710
  13. 840
  14. 4.1
  15. grey-brown-brown
  16. 660
  17. 960
  18. 1000
  19. 690
  20. 740
  21. violet-orange-black
  22. 1.6
  23. 5.8
  24. brown-yellow-black
  25. 30
  26. 50
  27. 49
  28. grey-red-black
  29. 20
  30. 1
  31. 800
  32. 970
  33. green-grey-orange
  34. 570
  35. 19
  36. 71000
  37. blue-yellow-orange
  38. 2
  39. yellow-grey-brown
  40. 5.5

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