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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 155 · 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 band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands grey, orange, orange. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does red stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) violet-green-black (b) violet-green-brown (c) green-violet-brown (d) violet-green-red
  7. 7.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  9. 9.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) brown-orange-black (b) white-orange-brown (c) orange-white-black (d) white-orange-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) red-white-brown (b) red-white-red (c) red-white-black (d) white-red-brown
  13. 13.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92000 Ω resistor? (a) red-white-orange (b) white-red-yellow (c) white-red-orange (d) white-red-red
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) brown-blue-black (b) blue-brown-brown (c) blue-brown-black (d) violet-brown-black
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) yellow-brown-black (b) orange-brown-black (c) orange-brown-brown (d) brown-orange-black
  24. 24.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) blue-red-brown (b) red-blue-black (c) violet-red-black (d) blue-red-black
  26. 26.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-brown (b) orange-white-black (c) white-orange-black (d) yellow-white-black
  29. 29.🌈 In the resistor colour code, which number does white stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) violet-yellow-orange (b) yellow-violet-yellow (c) yellow-violet-orange (d) yellow-violet-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) blue-violet-red (c) violet-blue-red (d) violet-blue-brown
  32. 32.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-blue-red (b) green-green-orange (c) green-green-red (d) green-green-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) orange-grey-black (b) white-orange-black (c) grey-orange-black (d) grey-orange-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-black (b) green-blue-brown (c) green-green-brown (d) green-green-red
  38. 38.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) red-violet-black (b) grey-red-black (c) violet-red-brown (d) violet-red-black
  40. 40.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 83000
  3. 1
  4. 800
  5. 2
  6. violet-green-brown
  7. 39
  8. 5 %
  9. 10
  10. 170
  11. white-orange-black
  12. red-white-brown
  13. 73
  14. 3100
  15. white-red-orange
  16. blue-brown-black
  17. 3
  18. 40000
  19. 32
  20. 29
  21. 8
  22. 3900
  23. orange-brown-black
  24. 91
  25. blue-red-black
  26. 9900
  27. 7.4
  28. orange-white-black
  29. 9
  30. yellow-violet-orange
  31. violet-blue-red
  32. 4.5
  33. 49000
  34. 2.8
  35. green-green-red
  36. grey-orange-black
  37. green-green-brown
  38. 130
  39. violet-red-black
  40. 96000

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