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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 72 · 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, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 50 % (d) 0 %
  5. 5.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50000 Ω resistor? (a) green-black-orange (b) green-black-yellow (c) blue-green-orange (d) green-black-red
  7. 7.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does orange stand for?
  9. 9.🌈 A resistor has the colour bands green, white, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  13. 13.🌈 In the resistor colour code, which number does white stand for?
  14. 14.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  16. 16.🌈 In the resistor colour code, which number does yellow stand for?
  17. 17.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, black, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does blue stand for?
  22. 22.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, orange, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) white-violet-black (c) violet-white-brown (d) violet-white-black
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 680 Ω resistor? (a) grey-blue-brown (b) blue-grey-red (c) blue-grey-brown (d) blue-grey-black
  29. 29.🌈 In the resistor colour code, which number does grey stand for?
  30. 30.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) violet-blue-brown (b) blue-violet-red (c) blue-violet-black (d) blue-violet-brown
  33. 33.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 In the resistor colour code, which number does black stand for?
  36. 36.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-black (c) green-brown-black (d) yellow-brown-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-brown (b) blue-black-black (c) violet-blue-black (d) violet-black-black
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-yellow (b) blue-orange-orange (c) orange-blue-red (d) orange-blue-orange
  40. 40.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?

Answer key

  1. 2.6
  2. 16
  3. 790
  4. 5 %
  5. 77000
  6. green-black-orange
  7. 760
  8. 3
  9. 590
  10. 940
  11. 24000
  12. 240
  13. 9
  14. 100
  15. the one nearest an end
  16. 4
  17. 1600
  18. 95
  19. 5
  20. 67000
  21. 6
  22. 120
  23. 14000
  24. 3300
  25. 280
  26. 5
  27. violet-white-black
  28. blue-grey-brown
  29. 8
  30. 13000
  31. 21
  32. blue-violet-brown
  33. 6.6
  34. 2
  35. 0
  36. 250
  37. yellow-brown-black
  38. blue-black-black
  39. orange-blue-orange
  40. 4000

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