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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 961 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) orange-black-yellow (b) orange-black-red (c) yellow-orange-orange (d) orange-black-orange
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) yellow-green-red (b) yellow-green-orange (c) green-yellow-orange (d) yellow-green-yellow
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) grey-black-black (c) grey-violet-black (d) violet-black-brown
  9. 9.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does yellow stand for?
  14. 14.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does blue stand for?
  21. 21.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) yellow-orange-brown (b) orange-black-black (c) orange-black-brown (d) orange-black-red
  25. 25.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does green stand for?
  32. 32.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does orange stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-orange (b) brown-orange-red (c) orange-brown-brown (d) orange-brown-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) orange-grey-black (b) white-orange-black (c) grey-orange-brown (d) grey-orange-black
  36. 36.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) red-violet-red (b) violet-red-orange (c) violet-red-brown (d) violet-red-red

Answer key

  1. orange-black-orange
  2. 5 %
  3. the one nearest an end
  4. 7
  5. 27
  6. yellow-green-orange
  7. 9
  8. violet-black-black
  9. 6800
  10. 15000
  11. 1
  12. 1.9
  13. 4
  14. 64
  15. 830
  16. 6.9
  17. 2
  18. 6.6
  19. 83
  20. 6
  21. 9.2
  22. 14
  23. 180
  24. orange-black-brown
  25. 2.1
  26. 450
  27. 1.6
  28. 2.4
  29. 9.4
  30. 19
  31. 5
  32. 81
  33. 3
  34. orange-brown-red
  35. grey-orange-black
  36. 39
  37. 75
  38. 9100
  39. 10
  40. violet-red-red

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