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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 833 · 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 gold band (b) the widest gap (c) any band (d) the one nearest an end
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-red (b) green-violet-red (c) violet-green-brown (d) violet-green-orange
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) white-orange-brown (b) white-orange-black (c) white-orange-red (d) orange-white-brown
  6. 6.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands blue, yellow, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does violet stand for?
  12. 12.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) green-white-red (b) white-green-brown (c) white-green-red (d) white-green-orange
  18. 18.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2600 Ω resistor? (a) red-blue-brown (b) blue-red-red (c) red-blue-orange (d) red-blue-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-orange-black (b) orange-black-brown (c) orange-black-black (d) yellow-black-black
  24. 24.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-orange (b) white-brown-red (c) white-brown-yellow (d) brown-white-orange
  27. 27.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) green-blue-brown (b) blue-green-red (c) blue-green-brown (d) blue-green-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-orange (b) red-yellow-yellow (c) red-yellow-red (d) yellow-red-orange
  30. 30.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, black, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-red (b) green-orange-brown (c) orange-green-red (d) green-orange-orange
  35. 35.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-brown (b) white-white-black (c) brown-white-black (d) white-black-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89 Ω resistor? (a) grey-white-brown (b) white-grey-black (c) white-white-black (d) grey-white-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-red (b) orange-black-yellow (c) yellow-orange-orange (d) orange-black-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) violet-brown-orange (b) brown-violet-yellow (c) brown-violet-red (d) brown-violet-orange
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) violet-brown-brown (d) brown-violet-red

Answer key

  1. the one nearest an end
  2. 5 %
  3. 0
  4. violet-green-red
  5. white-orange-brown
  6. 65
  7. 6.4
  8. 80
  9. 72
  10. 43000
  11. 7
  12. 970
  13. 180
  14. 14000
  15. 48
  16. 5.6
  17. white-green-red
  18. 62
  19. 2.5
  20. 27
  21. 9
  22. red-blue-red
  23. orange-black-black
  24. 1800
  25. 18
  26. white-brown-orange
  27. 53
  28. blue-green-brown
  29. red-yellow-orange
  30. 3.3
  31. 660
  32. 800
  33. 900
  34. green-orange-red
  35. 3
  36. white-white-black
  37. grey-white-black
  38. orange-black-orange
  39. brown-violet-orange
  40. violet-brown-red

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