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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 903 · 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) 25 % (b) 50 % (c) 0 % (d) 5 %
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  3. 3.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) yellow-brown-black (b) red-yellow-black (c) brown-yellow-brown (d) brown-yellow-black
  7. 7.🌈 In the resistor colour code, which number does grey stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) orange-yellow-black (b) yellow-orange-brown (c) yellow-orange-black (d) green-orange-black
  9. 9.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does yellow stand for?
  14. 14.🌈 A resistor has the colour bands yellow, black, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-brown (b) red-grey-black (c) brown-grey-black (d) grey-brown-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-red (b) grey-green-orange (c) green-grey-yellow (d) green-grey-orange
  21. 21.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, white, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) red-yellow-brown (b) yellow-red-black (c) yellow-red-red (d) yellow-red-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-black (b) green-red-brown (c) red-green-brown (d) red-green-red
  27. 27.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, red, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) yellow-orange-brown (b) orange-yellow-brown (c) yellow-orange-red (d) yellow-orange-black
  40. 40.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. the one nearest an end
  3. 120
  4. 5200
  5. 61
  6. brown-yellow-black
  7. 8
  8. yellow-orange-black
  9. 9.6
  10. 9
  11. 320
  12. 430
  13. 4
  14. 40
  15. 3
  16. 330
  17. 37
  18. 0
  19. brown-grey-black
  20. green-grey-orange
  21. 280
  22. 2.9
  23. 6.6
  24. 49000
  25. yellow-red-brown
  26. red-green-brown
  27. 51
  28. 670
  29. 18
  30. 92000
  31. 430
  32. 20000
  33. 5600
  34. 12
  35. 75000
  36. 4.1
  37. 120
  38. 41000
  39. yellow-orange-brown
  40. 880

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