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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 872 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 290 Ω resistor? (a) white-red-brown (b) red-white-brown (c) red-white-black (d) red-white-red
  5. 5.🌈 A resistor has the colour bands blue, black, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) blue-violet-black (b) green-violet-brown (c) green-violet-black (d) violet-green-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-brown (b) green-orange-black (c) yellow-green-black (d) orange-green-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-brown (b) blue-brown-orange (c) brown-blue-red (d) blue-brown-red
  9. 9.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  12. 12.🌈 A resistor has the colour bands white, black, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) brown-grey-orange (b) grey-brown-yellow (c) grey-brown-orange (d) grey-brown-red
  16. 16.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does yellow stand for?
  18. 18.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands brown, red, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-black (b) blue-blue-brown (c) blue-blue-red (d) blue-violet-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-red (b) white-blue-brown (c) white-blue-orange (d) blue-white-red
  23. 23.🌈 In the resistor colour code, which number does orange stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-orange (b) green-grey-brown (c) green-grey-red (d) grey-green-red
  25. 25.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does green stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-white-black (b) white-black-brown (c) white-black-black (d) brown-black-black
  31. 31.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, red, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 0
  3. 910
  4. red-white-brown
  5. 6
  6. green-violet-black
  7. orange-green-black
  8. blue-brown-red
  9. 78
  10. 9
  11. the one nearest an end
  12. 9000
  13. 650
  14. 7.2
  15. grey-brown-orange
  16. 1500
  17. 4
  18. 200
  19. 1.2
  20. 81
  21. blue-blue-brown
  22. white-blue-red
  23. 3
  24. green-grey-red
  25. 330
  26. 530
  27. 94
  28. 56
  29. 5
  30. white-black-black
  31. 8.2
  32. 72000
  33. 9.9
  34. 28
  35. 310
  36. 92
  37. 21
  38. 7.1
  39. 6
  40. 10000

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