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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 811 · 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 band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 0 % (c) 50 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23 Ω resistor? (a) orange-orange-black (b) red-orange-black (c) orange-red-black (d) red-orange-brown
  10. 10.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does orange stand for?
  13. 13.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands brown, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does yellow stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-red (b) green-brown-brown (c) brown-green-black (d) brown-green-brown
  17. 17.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands brown, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 650 Ω resistor? (a) blue-green-black (b) green-blue-brown (c) blue-green-brown (d) blue-green-red
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95000 Ω resistor? (a) white-green-yellow (b) green-white-orange (c) white-green-red (d) white-green-orange
  31. 31.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) red-yellow-orange (b) red-yellow-brown (c) yellow-red-red (d) red-yellow-red
  33. 33.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-yellow (b) blue-red-orange (c) red-blue-orange (d) red-blue-red
  35. 35.🌈 A resistor has the colour bands grey, green, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands blue, yellow, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, brown, brown. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1700 Ω resistor? (a) brown-violet-orange (b) violet-brown-red (c) brown-violet-red (d) brown-violet-brown

Answer key

  1. the one nearest an end
  2. 2
  3. 7
  4. 19
  5. 5 %
  6. 470
  7. 41
  8. 1.3
  9. red-orange-black
  10. 79000
  11. 2.4
  12. 3
  13. 4.8
  14. 14
  15. 4
  16. brown-green-brown
  17. 22
  18. 650
  19. 7400
  20. 57
  21. 3.6
  22. 840
  23. 5
  24. 140
  25. 20
  26. 72
  27. blue-green-brown
  28. 0
  29. 3900
  30. white-green-orange
  31. 6.3
  32. red-yellow-red
  33. 13000
  34. red-blue-orange
  35. 85
  36. 64000
  37. 2100
  38. 710
  39. 6
  40. brown-violet-red

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