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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 5 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands orange, brown, red. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) orange-yellow-red (d) orange-yellow-brown
  7. 7.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-red-black (b) red-black-black (c) orange-black-black (d) red-black-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) white-orange-red (b) white-orange-yellow (c) orange-white-orange (d) white-orange-orange
  10. 10.🌈 In the resistor colour code, which number does grey stand for?
  11. 11.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) orange-yellow-black (b) orange-yellow-brown (c) yellow-orange-black (d) yellow-yellow-black
  13. 13.🌈 A resistor has the colour bands brown, green, brown. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 27000 Ω resistor? (a) red-violet-red (b) red-violet-yellow (c) violet-red-orange (d) red-violet-orange
  15. 15.🌈 In the resistor colour code, which number does green stand for?
  16. 16.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-orange (b) violet-blue-orange (c) blue-black-red (d) blue-black-yellow
  18. 18.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) orange-orange-black (c) orange-orange-brown (d) yellow-orange-black
  22. 22.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) green-yellow-black (b) green-black-black (c) yellow-black-brown (d) yellow-black-black
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5200 Ω resistor? (a) green-red-red (b) green-red-orange (c) green-red-brown (d) red-green-red
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) blue-green-brown (b) green-blue-brown (c) green-blue-black (d) green-blue-red
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 In the resistor colour code, which number does violet stand for?
  29. 29.🌈 A resistor has the colour bands red, green, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  31. 31.🌈 In the resistor colour code, which number does orange stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) violet-yellow-black (b) yellow-violet-brown (c) violet-yellow-brown (d) violet-yellow-red
  33. 33.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) violet-green-brown (b) green-violet-black (c) violet-green-black (d) grey-green-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-yellow-red (b) orange-orange-brown (c) orange-orange-orange (d) orange-orange-red
  39. 39.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 0
  3. 70
  4. 3100
  5. 9
  6. orange-yellow-brown
  7. 49000
  8. red-black-black
  9. white-orange-orange
  10. 8
  11. 78
  12. orange-yellow-black
  13. 150
  14. red-violet-orange
  15. 5
  16. 1800
  17. blue-black-orange
  18. 940
  19. 440
  20. 33000
  21. orange-orange-black
  22. the one nearest an end
  23. yellow-black-black
  24. 2
  25. green-red-red
  26. green-blue-brown
  27. 6
  28. 7
  29. 250
  30. 8200
  31. 3
  32. violet-yellow-brown
  33. 7.8
  34. 1.4
  35. 7.3
  36. 1
  37. violet-green-black
  38. orange-orange-red
  39. 6500
  40. 1.3

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