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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 950 · 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) 5 % (b) 25 % (c) 0 % (d) 50 %
  2. 2.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 In the resistor colour code, which number does black stand for?
  8. 8.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-brown (b) brown-green-red (c) green-brown-red (d) green-brown-orange
  10. 10.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) white-blue-red (c) blue-white-red (d) white-blue-brown
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  23. 23.🌈 A resistor has the colour bands yellow, orange, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does blue stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-red (b) brown-orange-orange (c) orange-brown-orange (d) orange-brown-yellow
  27. 27.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87 Ω resistor? (a) violet-grey-black (b) grey-violet-black (c) grey-violet-brown (d) white-violet-black
  30. 30.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 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
  32. 32.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does white stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-brown (b) white-black-orange (c) brown-white-red (d) white-black-red
  39. 39.🌈 In the resistor colour code, which number does orange stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) yellow-red-black (b) orange-red-black (c) orange-red-brown (d) red-orange-black

Answer key

  1. 5 %
  2. 6.2
  3. 59
  4. 13
  5. 6.6
  6. 4
  7. 0
  8. 80
  9. green-brown-red
  10. 570
  11. 5.6
  12. 37
  13. white-blue-red
  14. 7
  15. 36000
  16. 52
  17. 8.7
  18. 6.1
  19. 66
  20. 33
  21. 38
  22. the one nearest an end
  23. 4300
  24. 65
  25. 6
  26. orange-brown-orange
  27. 920
  28. 43
  29. grey-violet-black
  30. 8.3
  31. white-orange-orange
  32. 3.4
  33. 290
  34. 1
  35. 73
  36. 120
  37. 9
  38. white-black-red
  39. 3
  40. orange-red-black

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