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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 154 · 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 1200 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) brown-red-red (d) brown-red-brown
  2. 2.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  5. 5.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) white-blue-orange (b) blue-white-yellow (c) blue-white-red (d) blue-white-orange
  7. 7.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38000 Ω resistor? (a) grey-orange-orange (b) orange-grey-yellow (c) orange-grey-orange (d) orange-grey-red
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6300 Ω resistor? (a) blue-orange-brown (b) blue-orange-orange (c) orange-blue-red (d) blue-orange-red
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-red (b) blue-orange-brown (c) orange-blue-black (d) orange-blue-brown
  12. 12.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-black (b) grey-violet-brown (c) violet-grey-brown (d) violet-grey-red
  19. 19.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) yellow-white-black (c) white-orange-black (d) orange-white-black
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) grey-violet-red (b) violet-black-brown (c) violet-black-red (d) violet-black-orange
  27. 27.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-black (b) violet-red-brown (c) red-violet-red (d) red-violet-brown
  31. 31.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does green stand for?
  33. 33.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-orange (b) blue-white-brown (c) white-blue-red (d) blue-white-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) orange-white-black (b) red-white-brown (c) red-white-black (d) white-red-black
  37. 37.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-red (b) grey-red-orange (c) red-grey-orange (d) grey-red-yellow

Answer key

  1. brown-red-red
  2. 1
  3. 57000
  4. 5 %
  5. 9
  6. blue-white-orange
  7. 280
  8. 790
  9. orange-grey-orange
  10. blue-orange-red
  11. orange-blue-brown
  12. the one nearest an end
  13. 0
  14. 5600
  15. 17
  16. 37
  17. 79
  18. violet-grey-brown
  19. 35
  20. 9000
  21. 62
  22. 920
  23. orange-white-black
  24. 1
  25. 69
  26. violet-black-red
  27. 5.2
  28. 2800
  29. 9900
  30. red-violet-brown
  31. 2.9
  32. 5
  33. 34
  34. 82
  35. blue-white-red
  36. red-white-black
  37. 850
  38. 4.9
  39. 9
  40. grey-red-orange

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