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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 447 · 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 42 Ω resistor? (a) yellow-red-brown (b) yellow-red-black (c) green-red-black (d) red-yellow-black
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-red (b) grey-green-orange (c) green-grey-orange (d) green-grey-yellow
  3. 3.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-black (b) white-grey-brown (c) white-grey-red (d) grey-white-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 310 Ω resistor? (a) orange-brown-red (b) orange-brown-brown (c) orange-brown-black (d) brown-orange-brown
  7. 7.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-red (b) orange-blue-brown (c) blue-orange-red (d) orange-blue-orange
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-orange (b) white-green-brown (c) white-green-red (d) green-white-red
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-orange (b) orange-grey-red (c) grey-orange-red (d) orange-grey-brown
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands red, orange, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, green, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does grey stand for?
  27. 27.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) red-brown-red (d) red-brown-brown
  33. 33.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does black stand for?
  35. 35.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  36. 36.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands yellow, brown, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. yellow-red-black
  2. green-grey-orange
  3. 6900
  4. 5 %
  5. white-grey-brown
  6. orange-brown-brown
  7. 81
  8. 8700
  9. 1
  10. 4
  11. 5
  12. 26
  13. 6500
  14. 9800
  15. orange-blue-red
  16. 2
  17. 15
  18. 3.6
  19. white-green-red
  20. orange-grey-red
  21. 5
  22. 45
  23. 20000
  24. 2300
  25. 95000
  26. 8
  27. 55
  28. 740
  29. 80
  30. 120
  31. 82
  32. red-brown-red
  33. 8.4
  34. 0
  35. the one nearest an end
  36. 43
  37. 410
  38. 6.4
  39. 42000
  40. 330

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