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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 183 · 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, violet, red. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6200 Ω resistor? (a) red-blue-red (b) blue-red-orange (c) blue-red-red (d) blue-red-brown
  4. 4.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-red (b) orange-yellow-orange (c) yellow-orange-red (d) orange-yellow-brown
  6. 6.🌈 In the resistor colour code, which number does white stand for?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-orange (c) green-grey-red (d) grey-green-orange
  9. 9.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 In the resistor colour code, which number does black stand for?
  12. 12.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  13. 13.🌈 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
  14. 14.🌈 In the resistor colour code, which number does orange stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 92 Ω resistor? (a) brown-red-black (b) white-red-black (c) red-white-black (d) white-red-brown
  16. 16.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-brown-black (c) brown-brown-brown (d) brown-red-brown
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) blue-grey-yellow (b) grey-blue-orange (c) blue-grey-red (d) blue-grey-orange
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) green-orange-black (b) orange-green-black (c) yellow-green-black (d) orange-green-brown
  22. 22.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does brown stand for?
  24. 24.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands orange, black, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands yellow, green, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 980 Ω resistor? (a) white-grey-brown (b) white-grey-red (c) white-grey-black (d) grey-white-brown
  32. 32.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does yellow stand for?
  35. 35.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) orange-blue-orange (b) orange-blue-yellow (c) blue-orange-orange (d) orange-blue-red
  39. 39.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. 2700
  2. 28
  3. blue-red-red
  4. 4
  5. orange-yellow-red
  6. 9
  7. 5 %
  8. green-grey-orange
  9. 97
  10. 7
  11. 0
  12. 190
  13. the one nearest an end
  14. 3
  15. white-red-black
  16. 980
  17. 38
  18. 600
  19. brown-brown-brown
  20. blue-grey-orange
  21. orange-green-black
  22. 78000
  23. 1
  24. 36000
  25. 9.6
  26. 30
  27. 400
  28. 720
  29. 45000
  30. 570
  31. white-grey-brown
  32. 930
  33. 750
  34. 4
  35. 48
  36. 290
  37. 270
  38. orange-blue-orange
  39. 3200
  40. 5

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