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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 534 · 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) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  3. 3.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 53 Ω resistor? (a) orange-green-black (b) green-orange-brown (c) blue-orange-black (d) green-orange-black
  5. 5.🌈 In the resistor colour code, which number does yellow stand for?
  6. 6.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) orange-white-red (c) white-orange-brown (d) white-orange-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) brown-green-orange (b) green-brown-red (c) brown-green-red (d) brown-green-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-orange (b) violet-red-red (c) red-violet-red (d) violet-red-brown
  10. 10.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does grey stand for?
  14. 14.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) violet-green-red (b) green-violet-red (c) green-violet-orange (d) green-violet-brown
  17. 17.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) red-brown-black (b) brown-black-brown (c) brown-black-black (d) red-black-black
  21. 21.🌈 A resistor has the colour bands red, grey, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-orange (c) yellow-orange-orange (d) orange-black-yellow
  24. 24.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66000 Ω resistor? (a) blue-blue-yellow (b) blue-violet-orange (c) blue-blue-orange (d) blue-blue-red
  27. 27.🌈 A resistor has the colour bands violet, yellow, black. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does green stand for?
  29. 29.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does black stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) yellow-violet-brown (b) yellow-violet-black (c) green-violet-black (d) violet-yellow-black
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) brown-white-black (b) white-black-black (c) white-white-black (d) white-white-brown
  37. 37.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 5 %
  3. 5
  4. green-orange-black
  5. 4
  6. 4600
  7. white-orange-red
  8. brown-green-red
  9. violet-red-red
  10. 820
  11. 3800
  12. 9.8
  13. 8
  14. 360
  15. 30
  16. green-violet-red
  17. 1400
  18. 2
  19. 13
  20. brown-black-black
  21. 280
  22. 990
  23. orange-black-orange
  24. 6.9
  25. 26
  26. blue-blue-orange
  27. 74
  28. 5
  29. 2500
  30. 0
  31. yellow-violet-black
  32. 1
  33. 35
  34. 6.4
  35. 1500
  36. white-white-black
  37. 71
  38. 11000
  39. 96
  40. 5.3

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