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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 199 · 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 white, blue, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) blue-violet-brown (b) violet-violet-black (c) violet-blue-black (d) blue-violet-black
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-yellow (b) white-red-orange (c) red-white-red (d) red-white-orange
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-brown (b) brown-white-black (c) white-white-black (d) white-black-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-yellow (b) brown-blue-orange (c) blue-brown-orange (d) brown-blue-red
  13. 13.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 In the resistor colour code, which number does violet stand for?
  19. 19.🌈 In the resistor colour code, which number does brown stand for?
  20. 20.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27 Ω resistor? (a) red-violet-black (b) orange-violet-black (c) violet-red-black (d) red-violet-brown
  25. 25.🌈 In the resistor colour code, which number does orange stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) violet-orange-black (b) yellow-violet-black (c) orange-violet-black (d) orange-violet-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-red (b) orange-green-orange (c) orange-green-yellow (d) green-orange-orange
  28. 28.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-orange (b) green-yellow-red (c) green-yellow-brown (d) yellow-green-red
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) grey-blue-black (b) grey-blue-brown (c) blue-grey-brown (d) grey-blue-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-brown (b) grey-grey-black (c) grey-white-black (d) white-grey-black
  32. 32.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-brown (b) blue-brown-red (c) brown-blue-red (d) blue-brown-orange
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-red (b) blue-orange-orange (c) blue-orange-yellow (d) orange-blue-orange
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) grey-brown-brown (b) grey-brown-red (c) grey-brown-orange (d) brown-grey-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) grey-orange-black (b) yellow-grey-black (c) orange-grey-black (d) orange-grey-brown
  37. 37.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, green, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 760 Ω resistor? (a) violet-blue-black (b) violet-blue-brown (c) violet-blue-red (d) blue-violet-brown

Answer key

  1. 96
  2. 2900
  3. 21000
  4. 1.6
  5. 47
  6. blue-violet-black
  7. 5 %
  8. red-white-orange
  9. 2
  10. the one nearest an end
  11. white-white-black
  12. brown-blue-orange
  13. 61
  14. 260
  15. 710
  16. 18
  17. 6
  18. 7
  19. 1
  20. 42000
  21. 100
  22. 0
  23. 81
  24. red-violet-black
  25. 3
  26. orange-violet-black
  27. orange-green-orange
  28. 33
  29. green-yellow-red
  30. grey-blue-brown
  31. grey-grey-black
  32. 25000
  33. blue-brown-red
  34. blue-orange-orange
  35. grey-brown-red
  36. orange-grey-black
  37. 77
  38. 3500
  39. 1
  40. violet-blue-brown

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