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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 515 · 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 orange stand for?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) white-red-brown (b) red-white-brown (c) white-red-black (d) white-red-red
  6. 6.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  9. 9.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) green-violet-black (b) grey-green-black (c) violet-green-black (d) violet-green-brown
  17. 17.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) green-yellow-black (b) yellow-green-black (c) yellow-yellow-black (d) yellow-yellow-brown
  19. 19.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) yellow-blue-red (b) yellow-blue-orange (c) blue-yellow-red (d) yellow-blue-brown
  22. 22.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-black (b) brown-orange-black (c) orange-white-black (d) white-orange-brown
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, grey, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does brown stand for?
  28. 28.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-brown (b) red-white-orange (c) red-white-red (d) white-red-red
  30. 30.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does black stand for?
  35. 35.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does blue stand for?
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?

Answer key

  1. 3
  2. 5 %
  3. 1600
  4. 1.5
  5. white-red-brown
  6. 1.1
  7. 18
  8. the one nearest an end
  9. 220
  10. 620
  11. 800
  12. 2
  13. 76
  14. 86
  15. 2100
  16. violet-green-black
  17. 42
  18. yellow-yellow-black
  19. 12
  20. 290
  21. yellow-blue-red
  22. 9.9
  23. white-orange-black
  24. 4
  25. 20000
  26. 8.8
  27. 1
  28. 30
  29. red-white-red
  30. 68
  31. 8
  32. 8.3
  33. 520
  34. 0
  35. 34
  36. 6
  37. 8
  38. 8800
  39. 920
  40. 36

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