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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 346 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-red (c) yellow-brown-black (d) yellow-brown-brown
  2. 2.🌈 In the resistor colour code, which number does brown stand for?
  3. 3.🌈 In the resistor colour code, which number does yellow stand for?
  4. 4.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) blue-blue-black (b) green-blue-brown (c) blue-green-black (d) green-blue-black
  7. 7.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does grey stand for?
  12. 12.🌈 In the resistor colour code, which number does violet stand for?
  13. 13.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  14. 14.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  15. 15.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does white stand for?
  20. 20.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-orange (b) blue-red-red (c) red-blue-red (d) red-blue-brown
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8300 Ω resistor? (a) grey-orange-brown (b) grey-orange-orange (c) grey-orange-red (d) orange-grey-red
  26. 26.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-black (b) orange-violet-brown (c) violet-orange-brown (d) orange-violet-red
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 A resistor has the colour bands orange, violet, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) brown-white-brown (b) white-black-brown (c) white-black-black (d) white-black-red
  37. 37.🌈 In the resistor colour code, which number does orange stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-brown (b) orange-brown-black (c) brown-orange-brown (d) orange-brown-red
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-brown (b) blue-green-red (c) blue-green-orange (d) green-blue-red
  40. 40.🌈 A resistor has the colour bands white, black, orange. What is its value (in ohms)?

Answer key

  1. yellow-brown-brown
  2. 1
  3. 4
  4. 3.8
  5. 5 %
  6. green-blue-black
  7. 320
  8. 39
  9. 5900
  10. 410
  11. 8
  12. 7
  13. 990
  14. the one nearest an end
  15. 410
  16. 810
  17. 4
  18. 1900
  19. 9
  20. 7800
  21. 13
  22. red-blue-red
  23. 6
  24. 55
  25. grey-orange-red
  26. 49000
  27. orange-violet-brown
  28. 0
  29. 37000
  30. 7.7
  31. 14
  32. 52
  33. 3100
  34. 77
  35. 2
  36. white-black-brown
  37. 3
  38. orange-brown-brown
  39. blue-green-red
  40. 90000

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