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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 892 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-black (b) brown-red-brown (c) red-brown-brown (d) red-brown-red
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) blue-green-orange (b) green-blue-yellow (c) green-blue-red (d) green-blue-orange
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-white-black (b) white-black-brown (c) brown-black-black (d) white-black-black
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  10. 10.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) blue-violet-brown (b) violet-blue-brown (c) blue-violet-black (d) blue-violet-red
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-orange (c) grey-black-brown (d) grey-black-red
  15. 15.🌈 A resistor has the colour bands white, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands orange, orange, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, orange, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1500 Ω resistor? (a) green-brown-red (b) brown-green-brown (c) brown-green-orange (d) brown-green-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-red (b) brown-black-orange (c) red-brown-red (d) brown-black-brown
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) yellow-white-red (b) white-yellow-orange (c) white-yellow-brown (d) white-yellow-red
  24. 24.🌈 A resistor has the colour bands orange, grey, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) red-yellow-orange (b) yellow-red-red (c) yellow-red-yellow (d) yellow-red-orange
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) violet-red-brown (b) red-violet-red (c) red-violet-black (d) red-violet-brown
  31. 31.🌈 In the resistor colour code, which number does white stand for?
  32. 32.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) grey-white-brown (b) white-grey-red (c) white-grey-brown (d) white-grey-black
  34. 34.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands blue, white, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) yellow-red-red (b) red-yellow-orange (c) red-yellow-brown (d) red-yellow-red
  39. 39.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 In the resistor colour code, which number does violet stand for?

Answer key

  1. red-brown-brown
  2. green-blue-orange
  3. 5 %
  4. white-black-black
  5. 1
  6. 750
  7. 2
  8. 640
  9. the one nearest an end
  10. 480
  11. 48
  12. 98
  13. blue-violet-brown
  14. grey-black-red
  15. 940
  16. 4700
  17. 33000
  18. 830
  19. 9.2
  20. brown-green-red
  21. brown-black-red
  22. 0
  23. white-yellow-red
  24. 3800
  25. 930
  26. yellow-red-orange
  27. 8
  28. 100
  29. 17000
  30. red-violet-brown
  31. 9
  32. 20000
  33. white-grey-brown
  34. 1.8
  35. 720
  36. 69000
  37. 99
  38. red-yellow-red
  39. 60
  40. 7

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