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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 81 · 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.🌈 In the resistor colour code, which number does black stand for?
  2. 2.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) red-orange-yellow (b) red-orange-red (c) orange-red-orange (d) red-orange-orange
  6. 6.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) grey-black-orange (b) grey-black-brown (c) white-grey-red (d) grey-black-red
  11. 11.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-orange-brown (b) red-red-brown (c) red-red-red (d) red-red-black
  13. 13.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) violet-grey-orange (b) grey-violet-yellow (c) grey-violet-orange (d) grey-violet-red
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-black (b) brown-grey-brown (c) grey-brown-brown (d) brown-grey-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 280 Ω resistor? (a) grey-red-brown (b) red-grey-red (c) red-grey-brown (d) red-grey-black
  26. 26.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  27. 27.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) brown-orange-orange (b) orange-brown-orange (c) orange-brown-red (d) orange-brown-yellow
  29. 29.🌈 In the resistor colour code, which number does blue stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) violet-blue-red (d) blue-black-brown
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) grey-orange-red (b) orange-grey-brown (c) orange-grey-red (d) orange-grey-orange
  33. 33.🌈 In the resistor colour code, which number does violet stand for?
  34. 34.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-black (b) orange-brown-brown (c) orange-brown-red (d) brown-orange-brown
  37. 37.🌈 A resistor has the colour bands violet, grey, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 0
  2. 900
  3. 3
  4. 5 %
  5. red-orange-orange
  6. 270
  7. 190
  8. 4200
  9. 8500
  10. grey-black-red
  11. 570
  12. red-red-brown
  13. 5.7
  14. 8
  15. 60000
  16. 82000
  17. 96
  18. 1
  19. 95
  20. 390
  21. 43000
  22. 4
  23. grey-violet-orange
  24. brown-grey-brown
  25. red-grey-brown
  26. the one nearest an end
  27. 5.2
  28. orange-brown-orange
  29. 6
  30. blue-black-red
  31. 9
  32. orange-grey-red
  33. 7
  34. 1900
  35. 37
  36. orange-brown-brown
  37. 780
  38. 7.5
  39. 64
  40. 100

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