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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 684 · 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) the one nearest an end (d) any band
  2. 2.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  9. 9.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) red-black-orange (b) red-black-red (c) red-black-yellow (d) orange-red-orange
  17. 17.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) yellow-orange-black (b) orange-orange-brown (c) orange-yellow-black (d) orange-orange-black
  20. 20.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-brown (b) red-brown-black (c) red-brown-red (d) brown-red-brown
  23. 23.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does yellow stand for?
  25. 25.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) green-black-brown (b) blue-black-black (c) green-black-black (d) blue-green-black
  33. 33.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75000 Ω resistor? (a) violet-green-red (b) green-violet-orange (c) violet-green-orange (d) violet-green-yellow
  36. 36.🌈 In the resistor colour code, which number does blue stand for?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-red (b) green-black-orange (c) green-black-brown (d) blue-green-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-brown (b) brown-white-black (c) brown-brown-black (d) white-brown-black
  39. 39.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 190
  3. 4800
  4. 45
  5. 8100
  6. 0
  7. 1
  8. 5 %
  9. 1.7
  10. 71
  11. 9.3
  12. 2
  13. 60
  14. 2.9
  15. 450
  16. red-black-orange
  17. 58
  18. 32
  19. orange-orange-black
  20. 74
  21. 46
  22. red-brown-brown
  23. 100
  24. 4
  25. 57
  26. 770
  27. 540
  28. 850
  29. 4300
  30. 3
  31. 84
  32. green-black-black
  33. 3.6
  34. 55
  35. violet-green-orange
  36. 6
  37. green-black-red
  38. white-brown-black
  39. 9800
  40. 36

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