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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 401 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) red-orange-orange (b) orange-red-red (c) orange-red-yellow (d) orange-red-orange
  9. 9.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  13. 13.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does brown stand for?
  15. 15.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does yellow stand for?
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-red (b) grey-red-orange (c) grey-red-yellow (d) red-grey-orange
  23. 23.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) violet-yellow-orange (b) yellow-violet-yellow (c) yellow-violet-orange (d) yellow-violet-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-brown (b) white-white-black (c) white-black-black (d) brown-white-black
  26. 26.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) violet-orange-brown (b) violet-orange-red (c) orange-violet-red (d) violet-orange-orange
  31. 31.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) brown-yellow-orange (b) yellow-brown-yellow (c) yellow-brown-red (d) yellow-brown-orange
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) yellow-orange-brown (b) orange-black-black (c) orange-black-red (d) orange-black-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) white-grey-orange (b) grey-black-yellow (c) grey-black-red (d) grey-black-orange
  38. 38.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 5500
  3. 3
  4. 780
  5. 0
  6. 3.2
  7. 350
  8. orange-red-orange
  9. 25000
  10. 710
  11. 47000
  12. the one nearest an end
  13. 45
  14. 1
  15. 78000
  16. 6000
  17. 4
  18. 2
  19. 93
  20. 100
  21. 4.9
  22. grey-red-orange
  23. 28
  24. yellow-violet-orange
  25. white-white-black
  26. 7000
  27. 29
  28. 89
  29. 2.6
  30. violet-orange-red
  31. 72
  32. yellow-brown-orange
  33. 8
  34. 280
  35. 5300
  36. orange-black-brown
  37. grey-black-orange
  38. 8100
  39. 960
  40. 27

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