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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 510 · 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) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37 Ω resistor? (a) violet-orange-black (b) orange-violet-black (c) orange-violet-brown (d) yellow-violet-black
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-red-black (b) orange-black-black (c) red-black-brown (d) red-black-black
  12. 12.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does violet stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25000 Ω resistor? (a) red-green-yellow (b) red-green-orange (c) green-red-orange (d) red-green-red
  15. 15.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  16. 16.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, red, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-brown (b) orange-grey-brown (c) grey-orange-black (d) grey-orange-red
  20. 20.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does white stand for?
  22. 22.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does black stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80 Ω resistor? (a) grey-black-brown (b) grey-black-black (c) white-grey-black (d) white-black-black
  26. 26.🌈 In the resistor colour code, which number does orange stand for?
  27. 27.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does blue stand for?
  29. 29.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands orange, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does green stand for?
  37. 37.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82 Ω resistor? (a) grey-red-brown (b) red-grey-black (c) grey-red-black (d) white-red-black
  40. 40.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 2.1
  3. 1000
  4. 1.8
  5. 7400
  6. 2.3
  7. 4
  8. 52000
  9. 33
  10. orange-violet-black
  11. red-black-black
  12. 110
  13. 7
  14. red-green-orange
  15. 5 %
  16. 9.2
  17. 2100
  18. 220
  19. grey-orange-brown
  20. 600
  21. 9
  22. 44000
  23. 76000
  24. 0
  25. grey-black-black
  26. 3
  27. 5.2
  28. 6
  29. 760
  30. 410
  31. 20000
  32. 3.8
  33. 3.3
  34. 1
  35. 96000
  36. 5
  37. 25000
  38. 78000
  39. grey-red-black
  40. 1600

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