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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 647 · 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 resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-yellow (b) red-black-red (c) orange-red-orange (d) red-black-orange
  9. 9.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-brown (b) orange-white-red (c) white-orange-red (d) orange-white-orange
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-black-black (b) brown-white-black (c) white-white-brown (d) white-white-black
  13. 13.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-red (b) orange-blue-orange (c) blue-orange-orange (d) blue-orange-yellow
  24. 24.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-black (c) brown-yellow-black (d) red-yellow-black
  26. 26.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) orange-brown-black (b) red-brown-black (c) brown-red-black (d) red-brown-brown
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) white-blue-brown (b) white-blue-black (c) blue-white-black (d) brown-blue-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8700 Ω resistor? (a) grey-violet-red (b) grey-violet-orange (c) grey-violet-brown (d) violet-grey-red
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 A resistor has the colour bands red, blue, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) orange-white-red (c) white-orange-red (d) white-orange-brown
  36. 36.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) brown-violet-orange (c) brown-violet-yellow (d) violet-brown-orange
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 350
  2. the one nearest an end
  3. 84
  4. 110
  5. 0
  6. 7
  7. 13000
  8. red-black-orange
  9. 76
  10. 5 %
  11. orange-white-red
  12. white-white-black
  13. 1500
  14. 8
  15. 7.4
  16. 660
  17. 5
  18. 210
  19. 51
  20. 530
  21. 3.1
  22. 94
  23. blue-orange-orange
  24. 6.5
  25. brown-yellow-black
  26. 65000
  27. red-brown-black
  28. white-blue-black
  29. grey-violet-red
  30. 9
  31. 42
  32. 2
  33. 2600
  34. 140
  35. white-orange-red
  36. 5200
  37. brown-violet-orange
  38. 3
  39. 1
  40. 150

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