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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 746 · 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.🌈 In the resistor colour code, which number does yellow stand for?
  2. 2.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-black (b) green-brown-brown (c) brown-green-brown (d) brown-green-red
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48000 Ω resistor? (a) yellow-grey-red (b) yellow-grey-orange (c) yellow-grey-yellow (d) grey-yellow-orange
  11. 11.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-red (c) yellow-yellow-black (d) yellow-yellow-brown
  13. 13.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-orange (b) green-black-yellow (c) green-black-red (d) blue-green-orange
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 380 Ω resistor? (a) orange-grey-brown (b) orange-grey-red (c) grey-orange-brown (d) orange-grey-black
  21. 21.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does orange stand for?
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does red stand for?
  26. 26.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) red-brown-red (b) brown-black-brown (c) brown-black-orange (d) brown-black-red
  28. 28.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) brown-red-orange (d) brown-red-yellow
  37. 37.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-black (b) yellow-blue-brown (c) blue-yellow-black (d) green-blue-black
  39. 39.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-yellow (b) grey-orange-orange (c) orange-grey-orange (d) grey-orange-red

Answer key

  1. 4
  2. 200
  3. 720
  4. 1
  5. 44
  6. 5 %
  7. brown-green-brown
  8. 6
  9. 360
  10. yellow-grey-orange
  11. the one nearest an end
  12. yellow-yellow-brown
  13. 2000
  14. 260
  15. 8300
  16. 21
  17. 13000
  18. 3.3
  19. green-black-orange
  20. orange-grey-brown
  21. 400
  22. 3
  23. 5
  24. 16
  25. 2
  26. 6.3
  27. brown-black-red
  28. 120
  29. 3300
  30. 26
  31. 40
  32. 7900
  33. 57
  34. 990
  35. 560
  36. brown-red-orange
  37. 670
  38. yellow-blue-black
  39. 25000
  40. grey-orange-orange

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