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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 795 · 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 widest gap (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does brown stand for?
  10. 10.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) brown-white-black (b) white-brown-brown (c) white-brown-black (d) brown-brown-black
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) white-yellow-brown (b) yellow-white-brown (c) white-yellow-red (d) white-yellow-black
  13. 13.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  16. 16.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does red stand for?
  22. 22.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-black (b) violet-yellow-brown (c) yellow-violet-black (d) grey-yellow-black
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) green-yellow-brown (b) yellow-black-black (c) yellow-black-red (d) yellow-black-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-black-black (b) white-black-black (c) white-black-brown (d) brown-white-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-black (b) red-brown-brown (c) brown-black-brown (d) brown-black-red
  28. 28.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-black (b) orange-brown-black (c) brown-orange-brown (d) red-orange-black
  30. 30.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands white, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) orange-white-yellow (b) white-orange-orange (c) orange-white-orange (d) orange-white-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93000 Ω resistor? (a) orange-white-orange (b) white-orange-yellow (c) white-orange-red (d) white-orange-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-orange (b) white-black-red (c) brown-white-red (d) white-black-brown
  40. 40.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 170
  3. 3.7
  4. 4
  5. 1100
  6. 0
  7. 5
  8. 470
  9. 1
  10. 90
  11. white-brown-black
  12. white-yellow-brown
  13. 87
  14. 360
  15. 5 %
  16. 800
  17. 4600
  18. 26
  19. 27
  20. 58000
  21. 2
  22. 150
  23. 440
  24. violet-yellow-black
  25. yellow-black-brown
  26. white-black-black
  27. brown-black-brown
  28. 400
  29. brown-orange-black
  30. 130
  31. 91
  32. 70
  33. 44
  34. 720
  35. 2.6
  36. 42
  37. orange-white-orange
  38. white-orange-orange
  39. white-black-red
  40. 29000

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