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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 246 · 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 red stand for?
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands red, black, red. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73 Ω resistor? (a) orange-violet-black (b) grey-orange-black (c) violet-orange-black (d) violet-orange-brown
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  11. 11.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-orange (b) yellow-green-red (c) green-yellow-brown (d) green-yellow-red
  14. 14.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2800 Ω resistor? (a) red-grey-orange (b) grey-red-red (c) red-grey-red (d) red-grey-brown
  17. 17.🌈 A resistor has the colour bands brown, grey, brown. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does grey stand for?
  19. 19.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  21. 21.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-red (b) violet-brown-orange (c) brown-violet-yellow (d) brown-violet-orange
  25. 25.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does white stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-orange (b) yellow-black-red (c) yellow-black-yellow (d) green-yellow-orange
  28. 28.🌈 A resistor has the colour bands white, green, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, violet, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) yellow-red-red (b) red-yellow-red (c) red-yellow-orange (d) red-yellow-brown
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-orange (b) brown-red-orange (c) brown-brown-red (d) brown-brown-yellow

Answer key

  1. 2
  2. 0
  3. 2.7
  4. 7900
  5. 2000
  6. violet-orange-black
  7. 1
  8. 5000
  9. 60000
  10. 5 %
  11. 310
  12. 160
  13. green-yellow-red
  14. 3600
  15. 98
  16. red-grey-red
  17. 180
  18. 8
  19. 42
  20. 390
  21. the one nearest an end
  22. 4
  23. 30000
  24. brown-violet-orange
  25. 68
  26. 9
  27. yellow-black-orange
  28. 9500
  29. 5.7
  30. 93
  31. 670
  32. 58000
  33. 70
  34. 600
  35. 540
  36. 7400
  37. 510
  38. 630
  39. red-yellow-red
  40. brown-brown-orange

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