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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 812 · 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.

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  1. 1.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) orange-grey-red (b) orange-grey-brown (c) grey-orange-red (d) orange-grey-orange
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  5. 5.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20000 Ω resistor? (a) orange-red-orange (b) red-black-red (c) red-black-yellow (d) red-black-orange
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) grey-black-black (b) grey-black-brown (c) white-black-black (d) white-grey-black
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7300 Ω resistor? (a) orange-violet-red (b) violet-orange-red (c) violet-orange-brown (d) violet-orange-orange
  10. 10.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-yellow (b) blue-yellow-orange (c) blue-yellow-red (d) yellow-blue-orange
  23. 23.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does grey stand for?
  25. 25.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-black (c) red-yellow-black (d) brown-yellow-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-red (b) yellow-brown-brown (c) brown-yellow-brown (d) brown-yellow-black
  30. 30.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands violet, orange, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands blue, green, orange. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 550 Ω resistor? (a) green-green-black (b) green-blue-brown (c) green-green-brown (d) green-green-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 850 Ω resistor? (a) grey-green-red (b) green-grey-brown (c) grey-green-black (d) grey-green-brown
  38. 38.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) grey-brown-brown (b) grey-brown-black (c) white-brown-black (d) brown-grey-black
  40. 40.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?

Answer key

  1. orange-grey-red
  2. 4
  3. 5 %
  4. the one nearest an end
  5. 9.6
  6. 1200
  7. red-black-orange
  8. grey-black-black
  9. violet-orange-red
  10. 29
  11. 130
  12. 6
  13. 1
  14. 9
  15. 190
  16. 3.4
  17. 3
  18. 9
  19. 0
  20. 2.6
  21. 5
  22. blue-yellow-orange
  23. 4400
  24. 8
  25. 80
  26. 1
  27. 110
  28. brown-yellow-black
  29. brown-yellow-brown
  30. 17
  31. 320
  32. 96000
  33. 2.8
  34. 73000
  35. 65000
  36. green-green-brown
  37. grey-green-brown
  38. 8200
  39. grey-brown-black
  40. 760

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