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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 670 · 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 brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does violet stand for?
  3. 3.🌈 A resistor has the colour bands brown, violet, black. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands blue, green, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 In the resistor colour code, which number does white stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) orange-brown-orange (b) brown-orange-orange (c) brown-orange-red (d) brown-orange-yellow
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-red (b) red-green-orange (c) red-green-brown (d) green-red-red
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 5 % (d) 50 %
  13. 13.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 87000 Ω resistor? (a) grey-violet-yellow (b) grey-violet-orange (c) grey-violet-red (d) violet-grey-orange
  17. 17.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) yellow-green-black (b) blue-yellow-black (c) green-yellow-black (d) green-yellow-brown
  19. 19.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, grey, red. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) white-blue-yellow (b) white-blue-red (c) white-blue-orange (d) blue-white-orange
  23. 23.🌈 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
  24. 24.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 77 Ω resistor? (a) violet-violet-brown (b) violet-grey-black (c) violet-violet-black (d) grey-violet-black
  26. 26.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5700 Ω resistor? (a) violet-green-red (b) green-violet-red (c) green-violet-orange (d) green-violet-brown
  29. 29.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does grey stand for?
  34. 34.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands brown, grey, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 18
  2. 7
  3. 17
  4. 9.8
  5. 6.5
  6. 5900
  7. 1
  8. 5
  9. 9
  10. brown-orange-orange
  11. red-green-red
  12. 5 %
  13. the one nearest an end
  14. 2
  15. 57
  16. grey-violet-orange
  17. 6.3
  18. green-yellow-black
  19. 66
  20. 9.3
  21. 2800
  22. white-blue-orange
  23. orange-orange-brown
  24. 200
  25. violet-violet-black
  26. 91
  27. 20000
  28. green-violet-red
  29. 6100
  30. 43
  31. 520
  32. 8400
  33. 8
  34. 370
  35. 18
  36. 2.2
  37. 69
  38. 21
  39. 95
  40. 13

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