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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 36 · 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 gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) yellow-orange-black (b) yellow-black-black (c) orange-black-brown (d) orange-black-black
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) violet-orange-brown (b) orange-violet-red (c) orange-violet-black (d) orange-violet-brown
  4. 4.🌈 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
  5. 5.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77000 Ω resistor? (a) violet-violet-orange (b) violet-grey-orange (c) violet-violet-red (d) violet-violet-yellow
  13. 13.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-brown (b) grey-brown-red (c) brown-grey-orange (d) brown-grey-red
  15. 15.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) blue-grey-orange (b) grey-blue-red (c) grey-blue-orange (d) grey-blue-yellow
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 In the resistor colour code, which number does yellow stand for?
  21. 21.🌈 In the resistor colour code, which number does black stand for?
  22. 22.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98000 Ω resistor? (a) white-grey-yellow (b) grey-white-orange (c) white-grey-orange (d) white-grey-red
  25. 25.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands green, red, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  30. 30.🌈 In the resistor colour code, which number does grey stand for?
  31. 31.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) white-orange-black (b) grey-orange-black (c) orange-grey-black (d) grey-orange-brown
  35. 35.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands violet, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?

Answer key

  1. 5 %
  2. orange-black-black
  3. orange-violet-brown
  4. the one nearest an end
  5. 6500
  6. 2.9
  7. 3
  8. 7900
  9. 9
  10. 760
  11. 67
  12. violet-violet-orange
  13. 320
  14. brown-grey-red
  15. 22000
  16. 770
  17. 19
  18. grey-blue-orange
  19. 2
  20. 4
  21. 0
  22. 42000
  23. 23
  24. white-grey-orange
  25. 3.7
  26. 3200
  27. 52000
  28. 100
  29. 8200
  30. 8
  31. 780
  32. 1
  33. 32
  34. grey-orange-black
  35. 11
  36. 740
  37. 290
  38. 19
  39. 1800
  40. 63000

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