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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 4 · 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, grey, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  3. 3.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  12. 12.🌈 A resistor has the colour bands green, white, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, black, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-red (b) white-brown-yellow (c) brown-white-orange (d) white-brown-orange
  16. 16.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-red (b) red-green-yellow (c) green-red-orange (d) red-green-orange
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-red (b) yellow-orange-brown (c) orange-black-black (d) orange-black-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) orange-white-brown (b) white-orange-black (c) white-orange-red (d) white-orange-brown
  21. 21.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does blue stand for?
  23. 23.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) blue-red-black (b) red-blue-black (c) red-blue-brown (d) orange-blue-black
  25. 25.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-red (b) yellow-yellow-yellow (c) yellow-yellow-orange (d) yellow-green-orange
  27. 27.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-brown (b) brown-grey-black (c) white-brown-black (d) grey-brown-black
  29. 29.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does yellow stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-red (c) green-blue-black (d) green-blue-brown
  32. 32.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-red (b) red-violet-black (c) violet-red-brown (d) red-violet-brown
  39. 39.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 18
  2. 5 %
  3. 690
  4. 0
  5. 660
  6. 1.6
  7. 9
  8. 85
  9. 9.3
  10. 1
  11. the one nearest an end
  12. 590
  13. 21
  14. 3000
  15. white-brown-orange
  16. 47
  17. 190
  18. red-green-orange
  19. orange-black-brown
  20. white-orange-brown
  21. 8100
  22. 6
  23. 810
  24. red-blue-black
  25. 10000
  26. yellow-yellow-orange
  27. 44000
  28. grey-brown-black
  29. 31
  30. 4
  31. green-blue-brown
  32. 970
  33. 8
  34. 95
  35. 500
  36. 31000
  37. 800
  38. red-violet-brown
  39. 810
  40. 92

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