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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 511 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) grey-violet-black (b) violet-violet-black (c) violet-grey-black (d) violet-violet-brown
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  3. 3.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) brown-red-yellow (d) brown-red-orange
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-orange (b) violet-violet-red (c) violet-grey-orange (d) violet-violet-yellow
  7. 7.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  12. 12.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 In the resistor colour code, which number does black stand for?
  15. 15.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands brown, black, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, white, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does brown stand for?
  27. 27.🌈 A resistor has the colour bands red, white, brown. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7200 Ω resistor? (a) violet-red-orange (b) violet-red-brown (c) red-violet-red (d) violet-red-red
  29. 29.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 In the resistor colour code, which number does orange stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) red-blue-black (b) blue-red-black (c) violet-red-black (d) blue-red-brown
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81000 Ω resistor? (a) brown-grey-orange (b) grey-brown-orange (c) grey-brown-yellow (d) grey-brown-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-brown (c) orange-brown-black (d) brown-orange-black
  36. 36.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 330 Ω resistor? (a) orange-orange-red (b) orange-yellow-brown (c) orange-orange-brown (d) orange-orange-black
  38. 38.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?

Answer key

  1. violet-violet-black
  2. the one nearest an end
  3. 34000
  4. 8
  5. brown-red-orange
  6. violet-violet-orange
  7. 36000
  8. 5.4
  9. 720
  10. 7
  11. 5 %
  12. 670
  13. 5
  14. 0
  15. 9700
  16. 500
  17. 1
  18. 7.7
  19. 5700
  20. 11000
  21. 69
  22. 750
  23. 240
  24. 24
  25. 4.8
  26. 1
  27. 290
  28. violet-red-red
  29. 2.4
  30. 3
  31. blue-red-black
  32. 9
  33. 83
  34. grey-brown-orange
  35. brown-orange-black
  36. 9900
  37. orange-orange-brown
  38. 7.6
  39. 1500
  40. 87000

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