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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 316 · 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 7700 Ω resistor? (a) violet-violet-red (b) violet-violet-brown (c) violet-violet-orange (d) violet-grey-red
  2. 2.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-brown (c) yellow-blue-red (d) blue-yellow-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 320 Ω resistor? (a) orange-red-brown (b) red-orange-brown (c) orange-red-black (d) orange-red-red
  6. 6.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does blue stand for?
  8. 8.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-red (b) orange-green-black (c) orange-green-brown (d) green-orange-brown
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-brown (b) white-violet-red (c) violet-white-brown (d) white-violet-black
  13. 13.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-yellow (b) white-blue-orange (c) blue-white-red (d) blue-white-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-black (b) red-brown-brown (c) brown-red-brown (d) brown-red-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-brown (b) red-blue-red (c) red-blue-orange (d) blue-red-red
  17. 17.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  18. 18.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does yellow stand for?
  20. 20.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 170 Ω resistor? (a) brown-violet-red (b) brown-violet-brown (c) violet-brown-brown (d) brown-violet-black
  22. 22.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) grey-red-red (b) red-grey-orange (c) red-grey-red (d) red-grey-brown
  25. 25.🌈 In the resistor colour code, which number does green stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-red (b) grey-red-brown (c) red-grey-red (d) grey-red-orange
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-black (b) blue-green-brown (c) green-blue-brown (d) blue-green-red
  28. 28.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, violet, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does white stand for?
  31. 31.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 360 Ω resistor? (a) orange-blue-black (b) orange-blue-red (c) orange-blue-brown (d) blue-orange-brown
  36. 36.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. violet-violet-red
  2. 37
  3. 5 %
  4. blue-yellow-red
  5. orange-red-brown
  6. 52
  7. 6
  8. 7200
  9. 73000
  10. orange-green-brown
  11. 7
  12. white-violet-brown
  13. 180
  14. blue-white-orange
  15. brown-red-brown
  16. red-blue-red
  17. the one nearest an end
  18. 70000
  19. 4
  20. 57
  21. brown-violet-brown
  22. 1600
  23. 41
  24. red-grey-red
  25. 5
  26. grey-red-red
  27. blue-green-brown
  28. 170
  29. 77
  30. 9
  31. 6900
  32. 36
  33. 58
  34. 2
  35. orange-blue-brown
  36. 9.1
  37. 38
  38. 3
  39. 84
  40. 7

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