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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 276 · 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.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 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
  6. 6.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 38 Ω resistor? (a) orange-grey-brown (b) grey-orange-black (c) yellow-grey-black (d) orange-grey-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-green-brown (b) yellow-yellow-black (c) yellow-yellow-red (d) yellow-yellow-brown
  14. 14.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 In the resistor colour code, which number does red stand for?
  19. 19.🌈 A resistor has the colour bands red, white, 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, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-brown (b) grey-blue-black (c) blue-grey-black (d) violet-grey-black
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-yellow (b) grey-violet-red (c) grey-violet-orange (d) violet-grey-orange
  28. 28.🌈 A resistor has the colour bands orange, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-red (b) brown-white-yellow (c) white-brown-orange (d) brown-white-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-orange (b) green-grey-red (c) green-grey-brown (d) grey-green-red
  38. 38.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?

Answer key

  1. 26
  2. 5 %
  3. 49
  4. 4
  5. the one nearest an end
  6. 6.1
  7. 2700
  8. 3600
  9. 120
  10. 330
  11. 99000
  12. orange-grey-black
  13. yellow-yellow-brown
  14. 660
  15. 0
  16. 66
  17. 3
  18. 2
  19. 29
  20. 6
  21. 920
  22. blue-grey-black
  23. 5
  24. 44000
  25. 8.2
  26. 9.3
  27. grey-violet-orange
  28. 340
  29. 1400
  30. 1.9
  31. 1000
  32. 65
  33. 790
  34. 280
  35. 5.2
  36. brown-white-orange
  37. green-grey-red
  38. 670
  39. 5.4
  40. 71

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