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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 720 · 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.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 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
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) brown-violet-black (c) white-violet-brown (d) white-violet-black
  10. 10.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) white-brown-black (c) brown-white-brown (d) red-white-black
  14. 14.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-red (b) orange-yellow-black (c) orange-yellow-brown (d) yellow-orange-brown
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-brown (b) brown-white-red (c) white-black-red (d) white-black-orange
  17. 17.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-brown-black (c) brown-black-black (d) red-black-black
  19. 19.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does brown stand for?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 A resistor has the colour bands yellow, blue, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) orange-red-red (c) orange-red-brown (d) red-orange-red
  25. 25.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-red-black (b) red-orange-brown (c) orange-orange-black (d) red-orange-black
  27. 27.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 470 Ω resistor? (a) yellow-violet-red (b) violet-yellow-brown (c) yellow-violet-black (d) yellow-violet-brown
  29. 29.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) orange-white-yellow (b) white-orange-orange (c) orange-white-red (d) orange-white-orange
  34. 34.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does violet stand for?
  39. 39.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-orange (b) brown-blue-yellow (c) blue-brown-orange (d) brown-blue-red

Answer key

  1. 0
  2. 2
  3. 4200
  4. 740
  5. 49000
  6. 8
  7. 25
  8. the one nearest an end
  9. white-violet-black
  10. 420
  11. 5 %
  12. 8500
  13. brown-white-black
  14. 7.2
  15. orange-yellow-brown
  16. white-black-red
  17. 1900
  18. brown-black-black
  19. 36
  20. 1
  21. 9
  22. 46000
  23. 5300
  24. orange-red-red
  25. 3.8
  26. red-orange-black
  27. 77
  28. yellow-violet-brown
  29. 36000
  30. 91
  31. 600
  32. 740
  33. orange-white-orange
  34. 1.2
  35. 710
  36. 910
  37. 7.4
  38. 7
  39. 8
  40. brown-blue-orange

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