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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 309 · 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 1300 Ω resistor? (a) orange-brown-red (b) brown-orange-brown (c) brown-orange-orange (d) brown-orange-red
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-yellow (b) grey-violet-red (c) violet-grey-orange (d) grey-violet-orange
  5. 5.🌈 In the resistor colour code, which number does yellow stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-brown (b) orange-grey-red (c) orange-grey-orange (d) grey-orange-red
  8. 8.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) grey-green-black (b) grey-green-red (c) grey-green-brown (d) green-grey-brown
  10. 10.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-brown-yellow (c) brown-red-orange (d) brown-brown-orange
  14. 14.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) grey-violet-black (b) violet-grey-black (c) grey-grey-black (d) violet-grey-brown
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) grey-brown-orange (b) brown-grey-yellow (c) brown-grey-red (d) brown-grey-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-brown (b) brown-red-black (c) brown-red-red (d) red-brown-brown
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) green-blue-brown (b) blue-green-black (c) green-blue-black (d) blue-blue-black
  26. 26.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) grey-red-red (b) red-grey-red (c) red-grey-brown (d) red-grey-orange
  31. 31.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) white-orange-brown (c) orange-white-red (d) white-orange-red
  37. 37.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-brown-brown (c) brown-brown-red (d) brown-red-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-red (b) red-red-brown (c) red-red-black (d) red-orange-brown
  40. 40.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?

Answer key

  1. brown-orange-red
  2. 5 %
  3. 9
  4. grey-violet-orange
  5. 4
  6. the one nearest an end
  7. orange-grey-red
  8. 45
  9. grey-green-brown
  10. 51000
  11. 120
  12. 9.1
  13. brown-brown-orange
  14. 560
  15. 49
  16. 94
  17. 9300
  18. violet-grey-black
  19. 8
  20. brown-grey-orange
  21. brown-red-brown
  22. 0
  23. 1700
  24. 73
  25. green-blue-black
  26. 760
  27. 45000
  28. 2
  29. 200
  30. red-grey-red
  31. 12
  32. 2.2
  33. 100
  34. 68000
  35. 78
  36. white-orange-red
  37. 99
  38. brown-brown-brown
  39. red-red-brown
  40. 35

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